The caterpillar and the butterfly
By: by R.E. Snodgrass.
Series: Smithsonian miscellaneous collections -- v. 143, no. 6; Publication -- 4472; Publication (Smithsonian Institution) -- 4472.
Publisher: Smithsonian Institution
Published: 1961
Place of publication: Washington
Language: eng
Number of pages: 51
Subjects: Butterflies -- Development.; Caterpillars -- Development.
Other titles: Caterpillar and butterfly
Notes: "November 3, 1961."

Includes bibliographical references (p. 45-51).