CONTENTS 



1. Butler, C. P. Observing the sun at 19,300 feet altitude, Mount 



Aunconquilcha, Chile. 4 pp., i fig. Feb. 18, 1936. (Publ. 3379.) 



2. Meier, Florence E. Lethal efifect of short wave lengths of the 



ultraviolet on the alga Chlorella vulgaris. 19 pp., 2 pis., 2 figs. 

 Mar. 20, 1936. (Publ. 3380.) 



3. GoDDARD, Robert H. Liquid-propellant rocket development. 



10 pp., II pis., I fig. Mar. 16, 1936. (Publ. 3381.) 



4. Resser, Charles Elmer. Second contribution to nomenclature 



of Cambrian trilobites. 29 pp. Apr. i, 1936. (Publ. 3383.) 



5. Bartsch, Paul. MoUuscan intermediate hosts of the Asiatic 



blood fluke, Schistosoma japoniciwi, and species confused with 

 them. 60 pp., 8 pis. May 11, 1936. (Publ. 3384.) 



6. Bassler, R. S. New species of American Edrioasteroidea. 33 pp., 



7 pis. May 4, 1936. (Publ. 3385.) 



7. Clark, Austin H. The gold-banded skipper (Rhabdoides 



cellus). 50 pp., 8 pis., 4 figs. May 6, 1936. (Publ. 3386.) 



8. Maxon, William R. Thomas Walter, botanist. 6 pp. Apr. 22, 



1936. (Publ. 3388.) 



9. Karrer, Enoch. Preliminary observations on growth and photo- 



tropic response of oat seedlings. 4 pp., i fig. June 2, 1936. 

 (Publ. 3389.) 



10. Roberts, Frank H. H., Jr. Additional information on the 



Folsom Complex : Report on the second season's investigations 

 at the Lindenmeier site in northern Colorado. 38 pp., 12 pis., 

 5 figs. June 20, 1936. (Publ. 3390-) 



1 1. Sanford, Fernando. Influence of planetary configurations upon 



the frequency of visible sun spots. 5 pp. June 5, 1936. 

 (Publ. 3391.) 



12. Abbot, C. G. The dependence of terrestrial temperatures on the 



variations of the sun's radiation. 15 pp., 7 figs. May 23, 1936. 

 (Publ. 3392.) 



13. Anderson, W. H. A comparative study of the labium of cole- 



opterous larvae. 29 pp., 8 pis. Aug. 11, 1936. (Publ. 3393.) 



14. Snodgrass, R. E. Morphology of the insect abdomen. Part III. 



The male genitalia (including arthropods other than insects). 

 96 pp., 29 figs. Oct. 12, 1936. (Publ. 3396.) 



(v) 



