Special occasional publication / Department of Mollusks, Museum of Comparative Zoology, Harvard University.

no.6 (1985)

Bulletin / Department of Agriculture, Forestry Division.

no. 24 pt. 1

Bulletin / Department of Agriculture, Forestry Division.

7

Bulletin / U.S. Department of Agriculture, Bureau of Forestry.

32-35

Bulletin / Ontario Department of Agriculture.

208-226

Bulletin / United States Department of Agriculture, Division of Agrostology.

no. 7-11 (1897-1898)

Bulletin / United States Department of Agriculture, Division of Agrostology.

no. 12-18 (1898-1899)

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

no.21-27 (1902-1903)

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

no.218-228 (1911-1912)

Bulletin / Ontario Department of Agriculture.

146-168

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

no.58-67 (1904) [incomplete]

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

no.210-217 (1911) [incomplete]

Annual report of the Pennsylvania Department of Agriculture ...

9

Annual report of the Office of Experiment Stations ... / U.S. Department of Agriculture.

1911

Annual report of the Office of Experiment Stations ... / U.S. Department of Agriculture.

1903