116 ANNUAL REPORT SMITHSONIAN INSTITUTION, 19 38 



No. 28. New species of hydroids from the Puerto Rican region, by G. McLean 

 Fraser. 7 pp., 2 pis. (Publ. 3443.) November 10, 1987. 



No. 29. A new genus of starfishes from Puerto Rico, by Austin H. Clark. 

 7 pp., 1 pi. (Publ. 3481.) June 18, 1938. 



VOLUME 96 



No. 1. Archeology of St. Lawrence Island, Alaska, by Henry B. Collins, Jr. 

 431 pp., 84 pis., 26 figs. (Publ. 3411.) August 9, 1937. 



No. 3. Phototropic response and C0 2 assimilation of plants in polarized light, 

 by Earl S. Johnston. 7 pp., 1 fig. (Publ. 3440.) July 12, 1937. 



No. 4. Indian sites below the falls of the Rappahannock, Virginia, by David I. 

 Bushnell, Jr. 65 pp., 21 pis., 11 figs. (Publ. 3441.) September 15, 1937. 



No. 5. The male genitalia of orthopteroid insects, by R. E. Snodgrass. 107 

 pp., 42 figs. (Publ. 3442.) September 25, 1937. 



No. 6. Growth of Avena coleoptile and first internode in different wave- 

 length bands of the visible spectrum, by Earl S. Johnston. 19 pp., 4 figs. 

 (Publ. 3444.) November 6, 1937. 



Title page and table of contents. (Publ. 3450.) 



VOLUME 97 



No. 1. Preliminary report on the Smithsonian Institution-Harvard University 

 archeological expedition to northwestern Honduras, 1936, by William Duncan 

 Strong, Alfred Kidder II, and A. J. Drexel Paul, Jr. 120 pp., 16 pis., 32 figs. 

 (Publ. 3445.) January 17, 1938. 



No. 2. Plant growth in relation to wave-length balance, by Earl S. Johnston. 

 18 pp., 4 pis. (Publ. 3446.) January 12, 1938. 



No. 3. Middle Cambrian fossils from Pend Oreille Lake, Idaho, by Charles 

 Elmer Resser. 12 pp., 1 pi. (Publ. 3447.) January 3, 193S. 



No. 4. The feeding mechanism of adult Lepidoptera, by John B. Schmitt. 

 28 pp., 12 figs. (Publ. 3448.) January 10, 1938. 



SMITHSONIAN ANNUAL REPORTS 



Report for 1936. — The complete volume of the Annual Report of 

 the Board of Regents for 1936 was received from the Public Printer 

 in October 1937. 



Annual Report of the Board of Regents of the Smithsonian Institution show- 

 ing operations, expenditures, and condition of the Institution for the year 

 ending June 30, 1936. xiv 4-446 pp., 122 pis., 26 text figs. (Publ. 3405.) 



The appendix contained the following papers: 



Astronomy in Shakespeare's time and in ours, by C. G. Abbot. 



The size and age of the universe, by Sir James Jeans. 



The earth, the sun, and sunspots, by Loring B. Andrews. 



Northern lights, by A. S. Eve. 



Radioactivity and atomic theory, by Lord Rutherford. 



The cryogenic laboratory at Leiden, by Robert Guillien. 



Form, drift, and rhythm of the continents, by W. W. Watts. 



Core samples of the ocean bottom, by Charles Snowden Piggot 



Some new aspects of evolution, by W. P. Pycraft. 



What is the meaning of predation? by Paul L. Errington. 



