VI CONTENTS 



15. Abbot, C. G. Furthei evidence on the dependence of terrestrial 



temperatures on the variations of solar radiation. 4 pp., 2 figs. 

 Aug. 12, 1936. (Publ. 3397-) 



16. Wenhold, Lucy L. A 17th century letter of Gabriel Diaz Vara 



Calderon, Bishop of Cuba, describing the Indians and Indian 

 missions of Florida. 14 pp., 12 pis. Nov. 20, 1936. (Publ. 

 3398.) 



17. Wetmore, Alexander. A new race of the song sparrow from 



the Appalachian region. 3 pp. Sept. 26, 1936. (Publ. 3399.) 



18. Wetmore, Alexander. Two original photographic negatives of 



Abraham Lincoln. 2 pp., 4 pis. Oct. 16, 1936. (Publ. 3400.) 



19. Abbot, C. G. Cycles in tree-ring widths. 5 pp., i fig. Dec. 16, 



1936. (Publ. 3402.) 



20. Burkholder, Paul R., and Johnston, Earl S. Inactivation of 



plant growth substance by light. 14 pp., 2 pis., i fig. Feb. 5, 



1937. (Publ. 3403.) 



21. Hoover, W. H. The dependence of carbon dioxide assimilation 



in a higher plant on wave length of radiation. 13 pp., 3 pis., 

 4 figs. Feb. 27, 1937. (Publ. 3406.) 



22. Resser, Charles Elmer. Third contribution to nomenclature 



of Cambrian trilobites. 29 pp. Apr. 5, 1937. (Publ. 3408.) 



23. Abbot, C. G. On the corrections to be applied to silver-disk 



pyrheliometry. 7 pp. Mar. 10, 1937. (Publ. 3409.) 



24. McAlister, E. D. Time course of photosynthesis for a higher 



plant. 17 pp., 2 pis., 10 figs. May 4, 1937. (Publ. 3410.) 



