Monography of the family Unionidae, or Naiades of Lamarck (fresh water bivalve shells,) of North America, : illustrated by figures drawn on stone from nature. / by T.A. Conrad ...

1

Prehistoric man, Hall of the Stone Age of the Old World / by Henry Field, Assistant Curator of Physical Anthropology. Foreword by Berthold Laufer -- 8 plates in photogravure and 1 map.

no.31(1933)

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

23-29

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

16-22