Field notes Vol. 305 documents Wendell Holmes Camp's botanical collecting trip to Florida, Georgia, Alabama, and North and South Carolina in March 1941. The notebook includes dates and locations, and detailed descriptive information on plants and habitats observed. No specimens are listed in this field book.

Field notes Vol. 215 documents Wendell Holmes Camp's experience in Ecuador in 1944-1945 on the Misión de Cinchona del Ecuador expedition. Camp joined the Misión de Cinchona del Ecuador, an expedition searching for the quinine-yielding bark of the Cinchona tree, in April 1944. The work was carried out under the United States Foreign Economic Administration, and later the U.S. Commercial Company. At the conclusion of the expedition in April 1945, Camp rejoined the staff of the New York Botanical Garden and continued collecting plants in Ecuador for an additional six months. This set of notes is arranged by date, covering May 1-October 15, 1945. The 18 loose pages are handwritten on yellow legal paper, with several small drawings. Many of the sentences are surrounded by quotation marks and perhaps were transcribed from an interview with Camp after the expedition, or taken from other notes by Camp. They are not in his handwriting, and the inclusion of his life dates in the heading suggest they were compiled after his death.

Field notes Vol. 307 documents Wendell Holmes Camp's botanical collecting in Maine, New Hampshire, and North Carolina in 1941. It is comprised of a list of specimen numbers 5975-6138, collected July 1941. The notebook includes dates and locations, and entries have detailed descriptive information on the plant and/or habitat. There are no plant names.

Field notes Vol. 304 documents Wendell Holmes Camp's botanical collecting in Maine, New Hampshire, and Massachusetts in 1941. It is comprised of a list of specimen numbers 5751-5973, collected June 17-25, 1941. The notebook includes dates and locations, and entries have detailed descriptive information on the plant and/or habitat. There are no plant names.

Field notes Vol. 208 documents Wendell Holmes Camp's botanical collecting in Ecuador in 1945 on a New York Botanical Garden expedition. It is comprised of a list of specimen numbers 4419-4637, collected August 2-10, 1945 in Ecuador. The notebook includes dates and locations, and entries have very detailed descriptive information on the plant and/or habitat. There are no plant names.