Introduction to plant geography and some related sciences

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 …

Proceedings of the California Academy of Sciences, 4th series

Surficial disturbance and natural plant recolonization in the Tuktoyaktuk Peninsula region, N.W.T

The freshwater molluscs of Canada

Opuscula philolichenum

Collected reprints, Essa Institute for Oceanography

The Canadian field-naturalist

Michigan botanist

Bulletin