Series	Smithsonian miscellaneous collections ; v. 91, no. 21 Smithsonian miscellaneous collections v. 91, no. 21. ^A638971
Local note	Joyner-FOR JOYNER LIBRARY HOLDINGS OF THE SERIES, SMITHSONIAN MISCELLANEOUS COLLECTIONS, SEARCH BY CALL NUMBER Q11 .S7.
General note	Publication 3547.
General note	At head of title: ... Roebling Fund.
Other title	Washington precipitation.
LCCN	39026933

Two remarkable new species of marine shells from Florida : (with one plate)
The Ptarmigania strata of the northern Wasatch mountains : (with 14 plates)
The determination of small amounts of chlorophyll-appparatus and method : (with two plates)
Algae collected on the Presidential cruise of 1938 : (with two plates
Stimulative effect of short wave lengths of the ultraviolet on the alga Stichococcus bacillaris : (with four plates)
Notes on Hillers' photographs of the Paiute and Ute Indians taken on the Powell expedition of 1873
The embryology of fleas (with 12 plates)
Five new races of birds from Venezuela
The sunspot period : (with one plate)
Utilizing heat from the sun : (with four plates)
Birds from Clipperton Island : collected on the Presidential cruise of 1938
List of the fishes taken on the Presidential cruise of 1938 : by Waldo L. Schmitt and Leonard P. Schultz
A new palm from Cocos Island collected on the Presidential cruise of 1938 : (with 26 plates)
Flowering plants collected on the Presidential cruise of 1938
A new dicrocoeliid trematode collected on the Presidential cruise of 1938
The Helt Township (Indiana) meteorite : (with nine plates)
Two new gobioid fishes collected on the Presidential cruise of 1938
Polyclad worms collected on the Presidential cruise of 1938
Mollusks collected on the Presidential cruise of 1938 : (with five plates), by Paul Bartsch, and Harald Alfred Rehder
Echinoderms (other than holothurians) collected on the Presidential cruise of 1938 : (with five plates)
Sponges collected on the Presidential cruise of 1938
The polychaetous annelids collected on the Presidential cruise of 1938
A new holothurian of the genus Thyone : collected on the Presidential cruise of 1938
Decapod and other Crustacea collected on the Presidential cruise of 1938 : (with introduction and station data) (with three plates)