"Pathogenic Investigations on Citellus Began April 20, 1906" (report), 1938  PDF

Overview of the Collection

"Pathogenic Investigations on Citellus Began April 20, 1906" (report)
1938 (inclusive)
0.05 linear feet, (1 folder.)
Collection Number
Report of laboratory research on a disease found in ground squirrels in eastern Washington State, circa 1906-1909.
Washington State University Libraries, Manuscripts, Archives, and Special Collections.
Manuscripts, Archives, and Special Collections
Terrell Library Suite 12
Pullman WA
Telephone: 509-335-6691
Access Restrictions

This collection is open and available for research use.


Content DescriptionReturn to Top

This collection consists of a single item, "Pathogenic Investigations on Citellus Began April 20, 1906" (typescript). It is a transcription produced in 1938 from an undated manuscript, and the author is not named. The manuscript was "found among the laboratory notes of Dr. S.B. Nelson, Formerly of Washington State College, Pullman." The document reports the results of a laboratory experiment commenced in 1906, continuing earlier work by Nelson and C.V. Piper on a disease observed in ground squirrels (Citellus townsendi) in Eastern Washington in 1896. Nelson and Piper isolated the pathogen, which they named "bacillus L," and the unnamed author of this report continued their research, investigating the pathogen for possible use in squirrel extermination.

Use of the CollectionReturn to Top

Restrictions on Use

No known restrictions on use.

Preferred Citation

"Pathogenic Investigations on Citellus Began April 20, 1906"; Manuscripts, Archives, and Special Collections; Washington State University Libraries.

Administrative InformationReturn to Top

Names and SubjectsReturn to Top

  • Subject Terms :
  • Ground squirrels--Diseases