CONTENTS 



1. Abbot, C. G., and Freeman, H. B., Absorption lines of the 



infra-red solar spectrum. 17 pp., 5 pis., Aug. 31, 1929. (Publ. 

 3026.) 



2. Snodgrass, R. E., The thoracic mechanism of a grasshopper and 



its antecedents. 11 1 pp., 54 text figs., Dec. 31, 1929. (Publ. 

 3027.) 



3. Abbot, C. G., The radiation of the planet earth to space. 12 pp., 



2 pis., NoY. 16, 1929. (Publ. 3028.) 



4. AIiLLER, Gerrit S., Jr., The Characters of the Genus Geoca- 



pi'omys Chapman. 3 pp., i pi., Dec. 9, 1929. (Publ. 3029.) 



5. Miller, Gerrit, S. Jr., Mammals eaten by Indians, owls, and 



Spaniards in the coast region of the Dominican Republic. 

 16 pp., 2 pis., Dec. II, 1929. (Publ. 3030.) 



6. Berry, Edward W., The past climate of the North Polar region. 



29 pp., 6 figs., Apr. 9, 1930. (Publ. 3061.) 



7. Clayton, H. Helm, The atmosphere and the sun. 49 pp., 33 



text figs., June 9, 1930. (Publ. 3062.) 



8. Nels'on, E. W., Four new raccoons from the keys of Southern 



Florida. 12 pp., 5 pis., July 10, 1920. (Publ. 3066.) 



9. Heron-Allen, Edward, F. R. S., The further and final re- 



searches of Joseph Jackson Lister upon the reproductive proc- 

 esses of Polystoinella crispa (Linne). 11 pp., 7 pis., NOv. 26, 



1930. (Publ. 3067.) 



10. Schedl, Karl E., Morphology of the bark-beetles of the genus 



Gnathotrichus Eichh. 88 pp., 40 figs., Jan. 24, 193 1. (Publ. 

 3068.) 



11. Haury, Emil W., and Hargrave, Lyndon L., Recently dated 



Pueblo ruins in Arizona. 120 pp., 2y pis., 35 text figs., Aug. 18, 



1931. (Publ. 3069.) 



12. Bushnell, David L, Jr., The five Monacan towns in Virginia, 



1607. 38 pp., 14 pis., Nov. 18, 1930. (Publ. 3070.) 



13. Miller, Gerrit S., Jr., A note on the skeletons of two Alaskan 



porpoises. 2 pp., i pi., Dec. 23, 1930. (Publ. 3107.) 



14. Miller, Gerrit S., Jr., The supposed occurrence of an Asiatic 



goat-antelope in the Pleistocene of Colorado. 2 pp.. 2 pis., 

 Dec. 22, 1930. (Publ. 3108.) 



(v) 



