File consists of 4 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of one package of course notes with title "Acarina" (mites and ticks.).
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.Unititled ts. speech notes.
Detwiler, John D.File consists of two items:
- Let rocks their silence break (1954);
- Soil and nutrition (1954).
File consists of one item:
Drought (1954)
File consists of 20 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of one item:
The background of the public muskrat rehabilitation projects ([19--]).
File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of instruction sheets from the Central Experimental farm in Ottawa.
Detwiler, John D.File consists of 4 carbon ts. leaves in tabular format.
Detwiler, John D.File consists of course materials: course descriptions, laboratory outline, illustrations, tables of classifications, etc. Untitled.
Detwiler, John D.File consists of course materials: sample methods, references.
Detwiler, John D.File consists of one notebook of lecture notes and and includes course outline, student grades.
Detwiler, John D.File consists of one notebook of ms. notes in various pagings, some dated.
Detwiler, John D.File consists of course outlines, lecture notes, exam questions, references, student attendance and marks for course on insects, including one titled "Friends and enemies of the garden." Includes two packages of hand-drawn pen and ink illustrations: "Wing venation" and "Morphology." Also includes a ts. (6 p., original): "Grasshopper."
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 4 pieces of correspondence.
Detwiler, John D.File consists of 3 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 14 pieces of correspondence.
Detwiler, John D.File consists of one item:
History of the West Ottawa Soil Conservation District (1944).
File consists of 1 piece of correspondence.
Detwiler, John D.Series consists of 174 pieces of correspondence to and from writers other than John D. Detwiler.
Detwiler, John D.File consists of 44 pieces of correspondence from writers with last names beginning with the letters "B" to "M" to other recipients.
Detwiler, John D.File consists of 33 pieces of correspondence from writers with last names beginning with the letters "O" to "Y" to other receipients.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of one item:
The New South ([19--]).
File consists of 3 pieces of correspondence.
Detwiler, John D.File consists of 10 pieces of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of one item:
The Forestry Program in the Tennessee Vally (1949).
File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 4 pieces of correspondence.
Detwiler, John D.File consists of one item:
Reforestation and Flood Control (1938).
File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of two items:
- Biology through the abbatoir: the mammalian heart (1940);
- Biology through the abbatoir: the mammalian lung (1941)
File consists of 6 pieces of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of one item:
Horse-Radish (1928).
File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of one item:
Wildlife's stake in pollution abatement (1948).
File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 3 pieces of correspondence.
Detwiler, John D.File consists of 3 pieces of correspondence.
Detwiler, John D.File consists of 3 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of one item:
[U.S. Agriculture] (1944).
File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 3 pieces of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of 1 piece of correspondence.
Detwiler, John D.File consists of one item:
Water rights law in Michigan: causes of legal problems (1954).
File consists of one item:
Some Geological Factors in Underground Wast Disposal (1954).
File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 2 pieces of correspondence.
Detwiler, John D.File consists of 9 pieces of correspondence.
Detwiler, John D.