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Collection Overview
| Size | 28.5 feet of linear shelf space (approximately 26000 items) |
| Abstract | John Nathaniel Couch (1896-1986) was a mycologist, professor of botany at the University of North Carolina, winner of scientific and teaching awards, and member of the National Academy of Sciences. Correspondence, research materials, teaching materials, photographs, and other papers. Included are Couch's correspondence with William Chambers Coker, Lindsay Shepherd Olive, and others, about publications, conferences, his faculty appointment, the University of North Carolina Botany Department, Chapel Hill, the North Carolina Academy of Science, his opinions of National Science Foundation proposals, botany students from India and Pakistan, and other topics. Research materials include grant applications, articles, notes, drawings, and photographs relating to Couch's discovery and study of fungi of the genus Actinoplanes and his study of other fungi, including genera Coelomyces and Septobasidium. Other papers include Couch's files of teaching materials, his files on his participation in professional organizations, files on the controversy over merger of the Departments of Botany and Zoology into a Biology Department, and files on Botany Department business, including hiring practices relating to women. |
| Creator | Couch, John Nathaniel, 1896- |
| Language | English |
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Information For Users
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Subject Headings
The following terms from Library of Congress Subject Headings suggest topics, persons, geography, etc. interspersed through the entire collection; the terms do not usually represent discrete and easily identifiable portions of the collection--such as folders or items.
Clicking on a subject heading below will take you into the University Library's online catalog.
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Biographical Information
John Nathaniel Couch was born 12 October 1896 in Prince Edward County, Va. His father, John Henry Couch, was a Baptist minister, and his mother, Sally Love Terry Couch, was a school teacher. In 1927, Couch married Else Dorothy Ruprecht of Brooklyn, N.Y. They had two children, John Phillip Couch and Sally Louise Couch Gooder.
Couch received his secondary education in the public schools of Virginia, Kentucky, West Virginia, and North Carolina. In 1914, Couch entered Trinity College, now Duke University, but transferred in 1917 to the University of North Carolina to study medicine. His career in medicine was short-lived because he came under the influence of W. C. Coker of the Botany Department, and decided to major in botany instead. His education was interrupted by World War I. In September 1918, he joined the American Expeditionary Force in France. While he was in France, he studied at the University of Nancy and received his bachelor of arts from the University of North Carolina in absentia.
When Couch returned from France in July 1919, he taught science at Charlotte (N.C.) High School. In 1920, he began teaching at Chapel Hill High School while he completed his master's degree, which he received in 1922. While Couch worked on his doctorate, he was an instructor of botany at the University. He was made an assistant professor in 1924 after receiving his Ph.D. By 1932, Couch was a full professor, and, in 1945, he was awarded a Kenan chair.
Couch was known internationally for his research in mycology, the study of fungi. He began his work in the 1920s under his mentor, W. C. Coker, also a noted mycologist. His first work was on the sexuality and structure of aquatic fungi. He discovered a new type of reproduction in Dictyuchus called heterothalism. During this period, he also assisted Coker in his study of gasteromycetes. In 1928, he co-authored the book The Gasteromycetes of the Eastern United States and Canada with Coker.
In 1925, Couch became interested in tree diseases and specifically in Septobasidium, a fungus that grows on living trees and is always associated with scale insects. Before Couch did his study of Septobasidium, it was assumed that the fungus eventually destroyed scale insects and was not harmful to the trees it grew on. Couch's research, however, showed that the fungus and scale insects lived in symbiotic harmony at the expense of the host trees. In 1926, Couch was awarded a Natural Research Council Fellowship in Botany to pursue his research at the Carnegie Station for Experimental Genetics, Cold Spring Harbor, N.Y. In the summer of 1926, he joined the Johns Hopkins Botanical Exploration in Jamaicirca He spent the next year at the Missouri Botanical Garden. Couch's work on Septobasidium was published in a number of articles, and, in 1938, he published a monograph, The Genus Septobasidium This work earned Couch the Walker Grand Prize from the Boston Society of Natural History in 1939, and, in 1943, a membership in the National Academy of Sciences, one of the first awarded to a Southern scientist.
In addition to his research on Septobasidium, Couch is also noted for his discovery in 1949 of the genus Actinoplanes, an organism that may provide a link between fungi and bacteria. Starting in the 1960s, Couch devoted his attention to studying Coelomomyces, a parastic fungus that attacks the larvae of the malarial mosquito. He published a monograph, The Genus Coelomomyces, with former student, Dr. Charles Bland, in 1985.
Couch was active in various professional organizations throughout his career. He was president of the American Mycological Society, 1943; president of the Elisha Mitchell Scientific Society, 1937-1938; a fellow in the American Association for the Advancement of Science and chairman of the botany section, 1962; a special advisor to the U.S. Office of Research and Development, 1944; and cultural exchange specialist to India; 1961.
Couch was chairman of the botany department at the University of North Carolina, 1944-1960. He retired in 1968 but still remained active in the department as Emeritus Kenan Professor. He was deeply opposed to the merger of the Botany Department with the Zoology Department to form a Biology Department in 1982 and was active in the unsuccessful effort to prevent the merger.
Couch donated land to the University in 1977, to be sold and the proceeds used to support botany studies. In 1984, the money from the sale of the land went to establish the John N. Couch Professorship in Botany. In 1979, the Botany Library was renamed in his honor. John Couch died in Chapel Hill, 16 December 1986.
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Scope and Content
These papers document John N. Couch's career as a mycologist--his research, teaching, and participation in professional organizations. There are few family or personal items. Correspondence, research notes and data, lecture notes and other teaching materials, reference material, and photographs may be found in the collection.
The papers are arranged in the series and subseries listed below. The arrangement reflects Couch's organization of his files. The general correspondence was removed from letter file boxes and placed in folders for easier access. Correspondence that Couch separated from his chronological files may be found in Series 2 or Series 3. Couch's file titles have been retained in most cases. In Series 2, files that Couch did not label as part of a major group are filed in Subseries 2.4. Photographs of people were separated and filed in Series 5. Photographs that illustrated research materials were kept with those materials.
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Series Quick Links
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Series 1. General Correspondence, 1924-1985.
Arrangement: alphabetical within the chronological divisions noted in the folder list below.
Chiefly professional correspondence, with occasional personal letters. Many letters concern exchanging specimens, of reprints of articles, activities of professional organizations, botany department business, or activities of current and former students of Couch. A few letters, from colleagues in other countries, are in German, French, or Spanish. Throughout the Series, there is routine correspondence between Couch and members of the Botany Department, including William Coker, and Lindsay Olive.
Couch filed correspondence alphabetically in letter file boxes. Most letters were filed under the last name of his correspondent. Some letters, however, were filed under the name of the person they are about. Others were filed under organizations, e.g., American Mycological Society under "A." Letters to and from family members were filed under first names, e.g. Adrian Couch under"A." A small amount of material, mostly in early years, was filed by subject - "I" for insurance, "T" for taxes, "F" for faculty, or "L" for library. Couch's order and chronological divisions have been retained. Couch kept correspondence on some topics separate from his chronological files. That material may be found in the other series of this collection.
The early letters pertain to Couch's publications, conferences he planned to attend, his UNC faculty appointment and salary, and family matters. In the 1920s, there is some correspondence between Couch and William Coker, when either of them was away from the University. In 1943 and 1944, Couch's letters to former students and colleagues serving in the army give news of the botany department and Chapel Hill during World War II.
In 1946-1947, when Couch served as president of the North Carolina Academy of Science, there are letters about the activities of that organization. Beginning in the late 1950s and continuing into the 1970s, Couch's evaluations of proposals for National Science Foundation funding appear in several years' correspondence.
In the late 1950s and early 1960s, there is correspondence with botanists in India and Pakistan, especially concerning arrangements for botany students to attend American universities.
| Folder 1-13 |
1924 - September 1930 #03810, Series: "1. General Correspondence, 1924-1985." Folder 1-13Folder 1Folder 2Folder 3Folder 4Folder 5Folder 6Folder 7Folder 8Folder 9Folder 10Folder 11Folder 12Folder 13 |
| Folder 14-26 |
October 1930 - 1932 #03810, Series: "1. General Correspondence, 1924-1985." Folder 14-26Folder 14Folder 15Folder 16Folder 17Folder 18Folder 19Folder 20Folder 21Folder 22Folder 23Folder 24Folder 25Folder 26 |
| Folder 27-39 |
1933 - April 1934 #03810, Series: "1. General Correspondence, 1924-1985." Folder 27-39Folder 27Folder 28Folder 29Folder 30Folder 31Folder 32Folder 33Folder 34Folder 35Folder 36Folder 37Folder 38Folder 39 |
| Folder 40-51 |
November 1934 - October 1937 #03810, Series: "1. General Correspondence, 1924-1985." Folder 40-51Folder 40Folder 41Folder 42Folder 43Folder 44Folder 45Folder 46Folder 47Folder 48Folder 49Folder 50Folder 51 |
| Folder 52-65 |
November 1937 - May 1939 #03810, Series: "1. General Correspondence, 1924-1985." Folder 52-65Folder 52Folder 53Folder 54Folder 55Folder 56Folder 57Folder 58Folder 59Folder 60Folder 61Folder 62Folder 63Folder 64Folder 65 |
| Folder 66-78 |
May 1939 - 24 February 1941 #03810, Series: "1. General Correspondence, 1924-1985." Folder 66-78Folder 66Folder 67Folder 68Folder 69Folder 70Folder 71Folder 72Folder 73Folder 74Folder 75Folder 76Folder 77Folder 78 |
| Folder 79-92 |
24 February 1941 - 5 April 1942 #03810, Series: "1. General Correspondence, 1924-1985." Folder 79-92Folder 79Folder 80Folder 81Folder 82Folder 83Folder 84Folder 85Folder 86Folder 87Folder 88Folder 89Folder 90Folder 91Folder 92 |
| Folder 93-105 |
5 April 1942 - 27 August 1943 #03810, Series: "1. General Correspondence, 1924-1985." Folder 93-105Folder 93Folder 94Folder 95Folder 96Folder 97Folder 98Folder 99Folder 100Folder 101Folder 102Folder 103Folder 104Folder 105 |
| Folder 106-119 |
27 August 1943 - 11 September 1944 #03810, Series: "1. General Correspondence, 1924-1985." Folder 106-119Folder 106Folder 107Folder 108Folder 109Folder 110Folder 111Folder 112Folder 113Folder 114Folder 115Folder 116Folder 117Folder 118Folder 119 |
| Folder 120-134 |
11 September 1944 - 1 September 1945 #03810, Series: "1. General Correspondence, 1924-1985." Folder 120-134Folder 120Folder 121Folder 122Folder 123Folder 124Folder 125Folder 126Folder 127Folder 128Folder 129Folder 130Folder 131Folder 132Folder 133Folder 134 |
| Folder 135-148 |
1 September 1945 - 1 July 1946 #03810, Series: "1. General Correspondence, 1924-1985." Folder 135-148Folder 135Folder 136Folder 137Folder 138Folder 139Folder 140Folder 141Folder 142Folder 143Folder 144Folder 145Folder 146Folder 147Folder 148 |
| Folder 149-162 |
1 July 1946 - 1 July 1947 #03810, Series: "1. General Correspondence, 1924-1985." Folder 149-162Folder 149Folder 150Folder 151Folder 152Folder 153Folder 154Folder 155Folder 156Folder 157Folder 158Folder 159Folder 160Folder 161Folder 162 |
| Folder 163-175 |
1 July 1947 - 1 July 1948 #03810, Series: "1. General Correspondence, 1924-1985." Folder 163-175Folder 163Folder 164Folder 165Folder 166Folder 167Folder 168Folder 169Folder 170Folder 171Folder 172Folder 173Folder 174Folder 175 |
| Folder 176-190 |
1 July 1948 - 1 July 1949 #03810, Series: "1. General Correspondence, 1924-1985." Folder 176-190Folder 176Folder 177Folder 178Folder 179Folder 180Folder 181Folder 182Folder 183Folder 184Folder 185Folder 186Folder 187Folder 188Folder 189Folder 190 |
| Folder 191-203 |
1 July 1949 - 1 July 1950 #03810, Series: "1. General Correspondence, 1924-1985." Folder 191-203Folder 191Folder 192Folder 193Folder 194Folder 195Folder 196Folder 197Folder 198Folder 199Folder 200Folder 201Folder 202Folder 203 |
| Folder 204-218 |
1 July 1950 - 1 July 1951 #03810, Series: "1. General Correspondence, 1924-1985." Folder 204-218Folder 204Folder 205Folder 206Folder 207Folder 208Folder 209Folder 210Folder 211Folder 212Folder 213Folder 214Folder 215Folder 216Folder 217Folder 218 |
| Folder 219-231 |
1 July 1951 - 1 July 1952 #03810, Series: "1. General Correspondence, 1924-1985." Folder 219-231Folder 219Folder 220Folder 221Folder 222Folder 223Folder 224Folder 225Folder 226Folder 227Folder 228Folder 229Folder 230Folder 231 |
| Folder 232-246 |
1 July 1952 - 1 July 1953 #03810, Series: "1. General Correspondence, 1924-1985." Folder 232-246Folder 232Folder 233Folder 234Folder 235Folder 236Folder 237Folder 238Folder 239Folder 240Folder 241Folder 242Folder 243Folder 244Folder 245Folder 246 |
| Folder 247-260 |
1 July 1953 - 1 July 1954 #03810, Series: "1. General Correspondence, 1924-1985." Folder 247-260Folder 247Folder 248Folder 249Folder 250Folder 251Folder 252Folder 253Folder 254Folder 255Folder 256Folder 257Folder 258Folder 259Folder 260 |
| Folder 261-275 |
1 July 1954 - 1 July 1955 #03810, Series: "1. General Correspondence, 1924-1985." Folder 261-275Folder 261Folder 262Folder 263Folder 264Folder 265Folder 266Folder 267Folder 268Folder 269Folder 270Folder 271Folder 272Folder 273Folder 274Folder 275 |
| Folder 276-291 |
1 July 1955 - 30 June 1956 #03810, Series: "1. General Correspondence, 1924-1985." Folder 276-291Folder 276Folder 277Folder 278Folder 279Folder 280Folder 281Folder 282Folder 283Folder 284Folder 285Folder 286Folder 287Folder 288Folder 289Folder 290Folder 291 |
| Folder 292-306 |
1 July 1956 - 30 April 1957 #03810, Series: "1. General Correspondence, 1924-1985." Folder 292-306Folder 292Folder 293Folder 294Folder 295Folder 296Folder 297Folder 298Folder 299Folder 300Folder 301Folder 302Folder 303Folder 304Folder 305Folder 306 |
| Folder 307-321 |
1 May 1957 - March 1958 #03810, Series: "1. General Correspondence, 1924-1985." Folder 307-321Folder 307Folder 308Folder 309Folder 310Folder 311Folder 312Folder 313Folder 314Folder 315Folder 316Folder 317Folder 318Folder 319Folder 320Folder 321 |
| Folder 322-331 |
April-December 1958 #03810, Series: "1. General Correspondence, 1924-1985." Folder 322-331Folder 322Folder 323Folder 324Folder 325Folder 326Folder 327Folder 328Folder 329Folder 330Folder 331 |
| Folder 332-346 |
1959 #03810, Series: "1. General Correspondence, 1924-1985." Folder 332-346Folder 332Folder 333Folder 334Folder 335Folder 336Folder 337Folder 338Folder 339Folder 340Folder 341Folder 342Folder 343Folder 344Folder 345Folder 346 |
| Folder 347-360 |
1960 #03810, Series: "1. General Correspondence, 1924-1985." Folder 347-360Folder 347Folder 348Folder 349Folder 350Folder 351Folder 352Folder 353Folder 354Folder 355Folder 356Folder 357Folder 358Folder 359Folder 360 |
| Folder 361-375 |
1961 - 1962 #03810, Series: "1. General Correspondence, 1924-1985." Folder 361-375Folder 361Folder 362Folder 363Folder 364Folder 365Folder 366Folder 367Folder 368Folder 369Folder 370Folder 371Folder 372Folder 373Folder 374Folder 375 |
| Folder 376-389 |
1963 - 1 September 1964 #03810, Series: "1. General Correspondence, 1924-1985." Folder 376-389Folder 376Folder 377Folder 378Folder 379Folder 380Folder 381Folder 382Folder 383Folder 384Folder 385Folder 386Folder 387Folder 388Folder 389 |
| Folder 390-403 |
1 September 1964 - November 1967 #03810, Series: "1. General Correspondence, 1924-1985." Folder 390-403Folder 390Folder 391Folder 392Folder 393Folder 394Folder 395Folder 396Folder 397Folder 398Folder 399Folder 400Folder 401Folder 402Folder 403 |
| Folder 404-417 |
November 1967 - June 1972 #03810, Series: "1. General Correspondence, 1924-1985." Folder 404-417Folder 404Folder 405Folder 406Folder 407Folder 408Folder 409Folder 410Folder 411Folder 412Folder 413Folder 414Folder 415Folder 416Folder 417 |
| Folder 418-429 |
1976 - 1985 #03810, Series: "1. General Correspondence, 1924-1985." Folder 418-429Folder 418Folder 419Folder 420Folder 421Folder 422Folder 423Folder 424Folder 425Folder 426Folder 427Folder 428Folder 429 |
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Series 2. Research Files.
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Subseries 2.1. Actinoplanes, 1949-1980.
Arrangement: by type of material.
Correspondence, grant applications, typescripts of articles, notes, drawings, records of soil collections, and other material relating to Couch's discovery of the genus Actinoplanes. The correspondence is between Couch and fellow mycologists pertaining to research on Actinoplanes. The bulk of the grant material concerns a grant from Eli Lilly Laboratories to furnish the company with Actinoplanes isolates for research. The miscellaneous material includes drawings, notes, and records of cultures and soil collections. Of particular interest are notes on research plans and problems from 1958-1959 and 1963-1964 (folders 473-474).
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Subseries 2.2. Coelomomyces, 1959-1985.
Arrangement: by type of material.
Grants materials, holographs and typescripts of articles and a book, correspondence, notes, drawings, and other material relating to Couch's study of Coelomomyces, a fungus that kills the larvae of the malarial mosquito. The bulk of the material in this subseries relates to a National Institutes of Health grant to study Coelomomyces. Also included is a typescript of The Genus Coelomomyces written by Couch and his former student Charles Bland, published in 1985.
| Folder 488-522 |
Grants, National Institutes of Health #03810, Subseries: "2.2. Coelomomyces, 1959-1985." Folder 488-522Folder 488Folder 489Folder 490Folder 491Folder 492Folder 493Folder 494Folder 495Folder 496Folder 497Folder 498Folder 499Folder 500Folder 501Folder 502Folder 503Folder 504Folder 505Folder 506Folder 507Folder 508Folder 509Folder 510Folder 511Folder 512Folder 513Folder 514Folder 515Folder 516Folder 517Folder 518Folder 519Folder 520Folder 521Folder 522 |
| Folder 523-537 |
Typescript, The Genus Coelomomyces #03810, Subseries: "2.2. Coelomomyces, 1959-1985." Folder 523-537Folder 523Folder 524Folder 525Folder 526Folder 527Folder 528Folder 529Folder 530Folder 531Folder 532Folder 533Folder 534Folder 535Folder 536Folder 537 |
| Folder 538 |
Typescript, Patna Journal Article #03810, Subseries: "2.2. Coelomomyces, 1959-1985." Folder 538 |
| Folder 539-548 |
Miscellaneous #03810, Subseries: "2.2. Coelomomyces, 1959-1985." Folder 539-548Folder 539Folder 540Folder 541Folder 542Folder 543Folder 544Folder 545Folder 546Folder 547Folder 548 |
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Subseries 2.3. Septobasidium, 1928-1955.
Arrangement: by type of material.
Grant materials, correspondence, notes, drawings, photographs, and other materials relating to Couch's study of the fungus Septobasidium. Of particular interest is material documenting a collecting trip to Mexico in 1939 funded by a Carnegie Foundation grant (folders 565-574). Also included is material dealing with the publication and revision of Couch's book The Genus Septobasidium, published in 1938 (folders 575-582).
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Subseries 2.4. Other Research, 1924-1970.
Arrangement: alphabetical by subject.
Correspondence, notes, drawings, records from collecting trips, records of fungus samples, and other material documenting Couch's research on various types of fungi. Of particular interest is a folder containing lists of "fungi problems," which are research plans for the years 1936-1959 (folder 635). The miscellaneous category consists of materials that Couch had filed in unmarked folders or that were loose. The other subjects remain as Couch organized them. Some of the material in this subseries may overlap with research documented in the other subseries.
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Series 3. Professional Activities.
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Subseries 3.1. Biographical Material, 1923-1978.
Arrangement: by type.
Several short biographies for Who's Who and Science Biographies, retirement information, certificates, and clippings documenting the career of John Nathaniel Couch.
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Subseries 3.2. Professional Organizations, 1932-1982.
Arrangement: alphabetical.
Correspondence, notes, reports, programs, and other material relating to Couch's involvement in various professional organizations, with the United States government, and with the state of North Carolina.
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Subseries 3.3. Lectures by J. N. Couch, 1930-1974.
Arrangement: alphabetical.
Includes speeches with notes, slide lists, correspondence, and other material pertaining to lectures and speeches that Couch gave at various universities, for civic groups, and for professional organizations.
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Subseries 3.4. University of North Carolina, 1948-1982.
Arrangement: alphabetically by subject.
Correspondence, clippings, reports, minutes, notes, and other materials relating to John Couch's career as Professor of Botany at the University of North Carolina. Much of this material relates to the Botany Department. There is some material relating to various University committees on which Couch served. Of particular interest are Botany Department personnel files from the late 1940s which provide excellent documentation of hiring practices immediately after World War II, especially in regards to women. At least two women were being considered for a teaching job in the department in 1948, and one was apparently offered the job (folders 767-777). Also of interest is material relating to the controversy in 1982 over the proposed merger of the Botany and Zoology Departments into the Biology Department. Couch was bitterly opposed to the merger and his efforts to prevent it are well documented in this series. Note: University Archives reviewed and declined this material.
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Series 4. Teaching Materials, 1942-1967 and undated.
Arrangement: alphabetical.
Lecture notes, laboratory directions, review questions, examinations, and reference material.
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Series 5. Pictures, 1921-1974.
Arrangement: by subject.
Black and white photographs of John Nathaniel Couch and various colleagues at the University of North Carolina, students, research assistants, fellow botanists, and others, including W. C. Coker, Alma Whiffen Barksdale, and Silas Pettiford, the janitor of old Davie Hall in the 1940s.
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Addition of November 1998 (Acc.98239)
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Subseries 2.1. Actinoplanes, November 1949-March 1964.
Arrangement: by category and by isolate/experiment number.
This addition to the Actinoplanes subseries logically follows the materials already held in the subseries. The previous materials contained correspondence, grants, and research plans; the new materials contain specific records about particular experiments to document the growth of Actinoplanes. The individual folders are labelled as they were in Couch's files, the label usually consisting of both an experiment number and a name or letter. The letters generally stand for either the place from which the Actinoplanes sample was gathered (such as P for Philippines), or are shortened versions of a person's name (such as Whif for Whiffen or Ed for Edmisten).
The largest group of folders, those labeled "Drawings and Records," document the growth of Actinoplanes in petri dishes on different media, including leaves and various kinds of agar--potato dextrose (P.D.A.), casein, potato sucrose (P.S.), nutrient (N), Krainsky's dextrose asparagin (K.D.A.A.), Czapek's (Cza.), Czapaek's agar with glycerine (Cza. Glyc.), soil water Czapek (S.W.Cza.), Magnolia soilwater peptone (M.S.P.C.), soilwater potato dextrose (S.W.P.D.A.), and oatmeal, among others. The observations of the fungi include their shape, size, texture, color, and the presence or absence of sporangia, structures which produce spores; drawings of the Actinoplanes are also part of these observations.
Files called "Bottles" contain records of experiments involving Actinoplanes that have a bottle shape. The observations included in these papers are similar to those in the Drawings and Records section.
"Blue Isolates and Pigments," which contains papers dating between July 1963 and September 1963, consists of records of experiments with Actinoplane isolates that produced blue pigments. Characteristics recorded include growth, color, surface character, odor, and sporangia shape, among others.
"Freeze-drying" contains papers, pamphlets, notes, and other materials dating between December 1949 and July 1959. The materials in this section remain grouped together as they were in Couch's files; while they do contain materials on freeze-drying as related to experiments, they also contain various other materials as shown by the folder list.
"Nutritional Studies" consists of records dating between July 1952 and October 1962. The results of different experiments with Actinoplane isolates are recorded, with data noted similar to that mentioned above. The heart of the studies seems to be whether the isolates utilize the proteins casein and gelatin and the amino acid tyrosine.
"Drawings of Sporangia" consists of index cards dating between November 1963 and March 1964 which have drawings and descriptions of Actinoplanes. Each card carries an experiment number.
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Series 5. Pictures, December 1949-May 1955.
Arrangement: by original Actinoplanes isolate number.
This series contains photographs of Actinoplanes corresponding to the isolate numbers used by Couch and indicated in the subseries above. Couch's three separate series of photographs have been maintained.
The last folder contains a collection of slides of Actinoplanes.
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Processed by: Marion Presler and Linda Sellars, July 1987; Arturo Bagley, August 2000
Encoded by: ByteManagers Inc., 2008
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