The Bulletin of the North Carolina Department of Agriculture.

27-28

Annual report of the Pennsylvania Department of Agriculture ...

20

Annual report of the Pennsylvania Department of Agriculture ...

21

Annual reports of the Department of Agriculture ...

1902

Circular / U.S. Department of Agriculture, Bureau of Plant Industry.

no. 105-119

Circular / U.S. Department of Agriculture, Bureau of Plant Industry.

no. 42-72

Annual report of the Pennsylvania Department of Agriculture ...

11

Annual report of the Pennsylvania Department of Agriculture ...

12

Annual reports of the Department of Agriculture ...

1901

Bulletin / Department of Agriculture, Forestry Division.

6

The Bulletin of the North Carolina Department of Agriculture.

30

The Bulletin of the North Carolina Department of Agriculture.

37

Bulletin / U.S. Department of Agriculture, Office of Experiment Stations.

125-130

Bulletin / U.S. Department of Agriculture, Bureau of Plant Industry.

no.173-183 (1910) [incomplete]

Bulletin / U.S. Department of Agriculture, Division of Vegetable Physiology and Pathology.

16-22