Studies of the development and larval forms of echinoderms, by Dr. Th. Mortensen.

c. 3

Studies of the vegetation of Missouri ... / By Julian A. Steyermark.

v.9:no.6(1941)

Studies of the American flora - I / By Julian A. Steyermark.

v.17:no.5(1938)

Studies of the vegetation of Missouri ... / By Julian A. Steyermark.

v.9:no.5(1940)

Studies of the anatomy of the extrahepatic biliary tract in Mammalia.

v.22:no.6(1940)

Studies of the waters of the continental shelf, Cape Cod to Chesapeake Bay : III. A volumetric study of the zooplankton / by Henry B. Bigelow and Mary Sears.

v.54:no.4 (1939)

Studies on the embryology of the Sipunculidae. I. The embryonal envelope and its homologue. ... By John H. Gerould.

no. 1

Studies on the neotropical species of Stenus described by Bernhauer (Coleoptera, Staphylinidae) : seventy-eighth contribution to the knowledge of Steninae / Volker Puthz.

v.65:no.5(1974)