REPORT OF THE PRESIDENT, 1919. 37 



Habvet, E. N. Reversibility of the photogenic reaction in Cypridina. Jour. Gen. Physiol., 



vol. 1, 135-145 (Nov. 1918). 

 • . Chemical nature of Cypridina Luciferin and Cypridina Luciferaae. Jour. Gen. Physiol., 



vol. 1, 269-293 (Jan. 1919). 

 Hay, Oliver P. On some proboscideans of the State of New York. Science, n. •., vol. 49, 



377-379 (Apr. 1919). 



. Dr. Al6x. Hrdlidka and the Vero man. Science, n. a., vol. 48, 459-462 (Nov. 8, 1918). 



. Description of some mammalian and fish remains from Florida, of probably Pleistocene 



age. Proc. U. S. Nat. Mus., vol. 56, 103-112, with 3 pis. (July 31, 1919). 



On the relative ages of certain Pleistocene deposits. Amer. Jour. Sci., vol. 47, 361- 



375 (May 1919). 

 Hendry, M. F., T. M. Carpenter, and L. E. Emmes. Gaseous exchange with unpracticed 



subjects and two respiration apparatus employing three breathing appliances. Boston Med. 



and Surg. Jour., vol. 181, 285, 334, and 368 (1919). 

 HosTETTER, J. C. An apparatus for growing crystals under controlled conditions. Jour. Wash. 



Acad. Sci., vol. 9, 85-94 (1919). 

 . The hydrochloric acid color method for determining iron. (Papers on Optical Glass, 



No. 17.) Jour. Amer. Chem. Soc, vol. 41, 1531-1543 (1919). 

 . and H. S. Roberts. Electrometric titrations, with special reference to the determina- 

 tion of ferrous and ferric iron. Jour. Amer. Chem. Soc, vol. 41, 1337-1357 (1919). 

 , , and J. B. Ferguson. Volatilization of iron from optical glass pots by chlorine 



at high temperatures. (Papers on Optical Glass, No. 12.) Jour. Amer. Ceram. Soc, vol. 



2, 356-372 (1919). 



See Ferguson, J. B.; Merwin, H. E. 



Humason, Milton. The light curve of Nova Aquilse No. 3. Pubs. A. S. P., vol. 31, 43-44 (1919). 



Jean, F. C. See Weaver, J. E. 



Johnson, Alice. See Benedict, F. G. 



Johnston, John. See Adams, L. H. 



Joy, Alfred H. The spectrum of RU Camelopardalis. Read at Pasadena meeting, A. S. P. 

 (1919) ; Pubs. A. S. P., vol. 31, 180-181 (1919). 



. See Adams, Walter S. ; Hale, George E. 



Key, Wilhelmine E. Brief studies in eugenics (unsigned) in Eugenical News as follows: Vol. 

 III,Themodifiability of salient traits, 78; The field of genealogy, 79; A famous ancestress, 86; 

 Eugenics and migration, 87; The making of a master of finance, 90. Vol. IV, Heredity of 

 Theodore Roosevelt, 10; From generation to generation, 19; Well-known American families, 

 19; Coryell's ferry, 31; Colonial Amherst, 31; Bionomic family archives, 47; The Averell, 

 Averill, Avery family, 67; Heredity and racial differentiation, 67; Certain comeoverers, 57; 

 Fertility and eminence, GO; Standardizing racial norms, 62; From carving knives to swords, 

 70; Measuring environmental influence, 70; Aptitude and the life work, 75. 



King, Arthur S. Discussion of some evidence on the origin of radiation in the tube-resistance 

 furnace. Astrophys. Jour., vol. 49, 48-53 (1919); Mt. Wilson Contr., No. 162. 



■ Absorption effects with the electric furnace as related to temperature classification. 



Read at Pasadena meeting, Amer. Phys. Soc. (1919). 



. The electric furnace spectra of metals in the infra-red. Read at Pasadena meeting, 



Amer. Phys. Soc. (1919). 



, and Paul W. Merrill. Recent observations of tube-arc spectra, especially in the 



infra-red. Read at Pasadena meeting, Amer. Phys. Soc. (1919). 

 See Carter, Edna. 



Laughlin, Harry H The dynamics of cell-division. Proc Soc. Exper. Biol, and Med., vol. 

 15, No. 8 (1918). 



. Population schedule for the census of 1920. Jour. Hered., vol. 10, No. 5 (May 1919). 



. The relations of eugenics to other sciences. Eugenics Review (London), vol. 11, 



No. 2 (July 1919). 



. The relations between the number of chromosomes of a species and the rate of elimina- 

 tion of mongrel blood by the pure-sire method. Proc. Soc. Exper. Biol, and Med., vol. 16, 

 132-134 (1919). 



Brief reviews and studies (unsigned) in Eugenical News, among them the following: 



Vol. Ill, Four motives for human pedigree study, 54; The Nevada sterilization law, 62; The 

 intimate fife of Alexander Hamilton, 65 ; A fertile field for eugenics, 72 ; Future immigration, 

 91. Vol. IV, Alumni roster of the eugenics course, 21; The Eugenics Research Association, 

 32; Training course for field workers, 40; The position of field workers, 41; Life of Stonewall 

 Jackson, 46; Life of Nathan B. Forrest, 47; A century of negro migration, 50. 



Leland, Waldo G. Reconstruction in the United States. Quart. Rev., 177-193 (July 1919). 



Lewis, Margabet R. The formation of fat droplets in the cells of tissue cultures. Science, 

 n. s., vol. 48, 398 (1918). 



. The development of the cross-striated myofibril in the heart muscle of the chick embryo. 



Anat. Rec, vol. 16, 154 (1919). 



