118 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1920. 



VOLUME 69. 



No. 1. Smithsonian Meteorological Tables. August 19, 1919. 261 pp. (Publ. 

 2493.) 



No. 5. Mammals of Panama. By Edward A. Goldman. April 22, 1920. 309 

 pp., 39 pis. (Publ. 2498.) 



VOLUME 70. 



No. 2. Explorations and field-work of the Smithsonian Institution in 1918. 

 July 15, 1919. 122 pp., 127 figs. (Publ. 2535.) 



No. 3. Areheologieal investigations at Paragonah, Utah. By Neil M. Judd. 

 July 15, 1919. 22 pp., 15 pis. (Publ. 2536.) 



No. 4. Temperature variations in the North Atlantic Ocean and in the atmos- 

 phere. Introductory studies on the cause of climatological variations. By 

 Bjorn Helland-Hansen and Fridtjof Nansen. Hodgkins Fund. April 17, 1920. 

 408 pp., 48 pis. (Publ. 2537.) 



VOLUME 71. 



No. 2. A method of reaching extreme altitudes. By Robert H. Goddard. 

 December 30, 1919. 69 pp., 10 pis. (Publ. 2540.) 



No. 3. Variation in solar radiation and the weather. By H. Helm Clayton 

 (introductory note by C. G. Abbot). January 15, 1920. 53 pp., 5 pis. (Publ. 

 2544.) 



No. 4. The brightness of the sky. By A. F. Moore and L. H. Abbot. Hodgkins 

 Fund. February 4, 1920. 36 pp. (Publ. 2545.) 



No. 5. Observations of the total solar eclipse of May 29, 1919. By C. G. 

 Abbot and A. F. Moore. January 31, 1920. 12 pp., 1 pi. (Publ. 2578.) 



No. 6. New species of piper from Panama. By Casimir de Candolle. Feb- 

 ruary 12, 1920. 17 pp. (Publ. 2579.) 



VOLUME 72. 



No. 1. Explorations and field-work of the Smithsonian Institution in 1919. 

 May 8, 1920. 80 pp., 77 figs. (Publ. 2581.) 



No. 2. Two new East African primates. By N. Hollister. January 22, 1920. 

 2 pp. (Publ. 2582.) 



SMITHSONIAN ANNUAL REPORTS. 



REPORT TOR 1917. 



The complete volume of the Annual Report of the Board of 

 Regents for 1917, together with pamphlet copies of the papers in 

 the general appendix, was received from the Public Printer during 

 the year. 



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, 1917. xii+674 pp., 241 pis. (Publ. 2502.) 



The appendix contained the following papers : 



Projectiles containing explosives, by Commandant A. R. 16 pp. (Publ. 

 2503.) 



Gold and silver deposits in North and South America, by Waldemar Lind 

 gren. 27 pp. (Publ. 2504.) 



