Handbuch der systematischen botanik, mit besonderer berücksichtigung der arzneipflanzen. Bd. 1.

1

More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters, ed. by Francis Darwin ... and A.C. Seward ...

2

More letters of Charles Darwin. A record of his work in a series of hitherto unpublished letters, ed. by Francis Darwin ... and A.C. Seward ...

1

Report of the State board of agriculture on the work of extermination of the gypsy moth.

1898:Jan.