REPORT OF THE PRESIDENT, 1919. 41 



Sherman, H. C, F. Walker, and M. L. Caldwell. Action of enzymes upon starches of different 



origin. Jour. Amer. Chem. Soc, vol. 41, 1123 (July 1919). 

 , J. C. Winters, and V. Phillips. Efficiency of oat protein in adult human nutrition. 



Jour. Biol. Chem., 39, 53-62 (Aug. 1919). 

 Shreve, Edith B. A thermo-electrical method for the determination of leaf temperature. 



Plant World, vol. 22, 118-122 (1918). 

 -. Investigations of the absorption of water by gelatine. Jour. Franklin Inst., vol. 187, 



319-337 (1919). 



The r61e of temperature in the determination of the transpiring power of leaves by 



hygrometric paper. Plant World, vol. 22, 100-104 (1919). 

 Shreve, Forrest. The establishment of desert perennials. Jour, of Ecol., vol. 5, 210-216 (1917). 

 . The vegetation of the Pinaleno Mountains of southern Arizona. Plant World, vol. 22, 



(1919). 

 Spoehr, H. a. The development of conceptions of photosynthesis since Ingen-Houaz. Sci. 



Monthly, vol. 9, 32-47 (1919). 



. See MacDougal, D. T. 



St. John, Charles E. The present condition of the problem of solar rotation. Pubs. A. S. P., 



vol. 30, 319-325 (1918). 

 , and Harold D. Babcock. Are the wave-lengths of the atmospheric absorption 



lines variable? Read at Pasadena meeting, A. S. P. (1919) ; (Abstract) Pubs. A. S. P., 



vol. 31, 178 (1919). 

 -, and Louise W. Ware. On the source of discordant values for solar rotation. Read at 



Pasadena meeting, A. S. P. (1919); (Abstract) Pubs. A. S. P., vol. 31, 186 (1919). 

 Stock, Leo F. An early Jesuit work on the writing and judging of history. Catholic Hist. Rev., 



66-70 (Apr. 1919). 



. Summary of war legislation of the 65th Congress. Hist. Outlook, 401-419 (Oct. 1919). 



Streeter, G. L. Factors involved in the formation of the filum terminale. Amer. Jour. Anat., 



vol. 25, 1-11 (1919). 



. A very young monozygotic twin. Anat. Rec, vol. 16, 164 (1919). 



Stromberq, Gustaf. See Adams, Walter S. 



Sturtevant, a. H., C. B. Bridges, and T. H. Morgan. The spatial relations of genes. Proc. 



Nat. Acad. Sci., vol. 5. 168-173 (May 1919). 

 Takamine, Toshio. The Stark effect for metals. Astrophys. Jour., vol. 50, 23-41 (1919); Mt. 



Wilson Contr., No. 169. 

 Thomas, A. W. See Sherman, H. C. 



Vance, Harry W. The structure of the clasmatocyte. Anat. Rec, vol. 16, 166 (1919). 

 Van der Stricht, O. The development of the pillar cells, tunnel space, and Nuel's spaces in the 



organ of Corti. Jour. Compar. Neurol., vol. 30, 283-314 (1919). 

 TAN Maanen, Adriaan. Investigations on proper motion: First paper. The motions of 85 



stars in the neighborhood of Atlas and Pleione. Mt. Wilson Contr., No. 167. 

 . Investigations on proper motion: Second paper. The motions of 162 stars in the neigh- 

 borhood of the Orion nebula. Mt. Wilson Contr., No. 168. 

 . The distances of six planetary nebulse. Proc. Nat. Acad. Sci., vol. 4, 394-396 (1918); 



Mt. Wilson Communications, No. 56. 

 . Evidence of stream motion afforded by the faint stars near the Orion nebula. Proc. 



Nat. Acad. Sci., vol. 5, 225-228 (1919). 



. The parallax of the Andromeda nebula. Pubs. A. S. P., vol. 30, 307 (1918). 



. The paraUax of B. D. +36° 3956. Pubs. A. S. P.. vol. 30, 308 (1918). 



. Parallax notes. Pubs. A. S. P., vol. 30, 342-343(1918). 



. A very faint star of spectral type F. Pubs. A. S. P., vol. 31, 42-43 (1919). 



. The masses and absolute magnitudes of visual binaries. Read at Pasadena meeting, 



A. S. P. (1919); Pubs. A. S. P., vol. 31, 231-233 (1919). 

 . Stellar parallaxes derived from photographs made with the 60-inch reflector of the Mount 



Wilson Observatory. Astron. Jour., vol. 32, 86-88 (1919). 



. J. C. Kapteyn. California Southland, No. 5 (1919). 



-, and Roscoe F. Sanford. Preliminary parallax of Nova Aquilte No. 3. Read at Pasa- 



dena meeting, A. S. P. (1919); Pubs. A. S. P., vol. 31, 234 (1919). 



. See Seares, Frederick, H. 



Vaughan, T. W. Correlation of the Tertiary formations of the southeastern United States, Central 



America, and the West Indies. Jour. Wash. Acad. Sci., vol. 8, 268-278 (May 1918). 

 . Geologic history of Central America and the West Indies during Cenozoic time. Bull. 



Geol. Soc. Amer., vol. 29, 615-630 (1919). 

 . Fossil corals from Central America, Cuba, and Porto Rico, with an account of the 



American Tertiary, Pleistocene, and Recent coral reefs. U. S. Nat. Mus. Bull. 103, 189-523, 



pis. 68-152, 22 text-figs. (1919). 

 . The biologic character and geologic correlation of the sedimentary formations of 



Panama, in their relation to the geologic history of Central America and the West Indies. 



U. S. Nat. Mus. Bull. 103, 547-612 (1919). 



e 



