CONTENTS 



1. Friedmann, Herbert. Mirandolle's forest falcon. 4 pp., 2 pis. 



Sept. 22, 1948. (Publ. 3948.) 



2. Wedel, Waldo R. Prehistory and the Missouri Valley develop- 



ment program. Summary report on the Missouri River Basin 

 Archeological Survey in 1947. 52 pp., 8 pis. Nov. 23, 1948. 

 (Publ. 3950- ) 



3. Knight, J. Brookes. Further new Cambrian bellerophont gas- 



tropods. 6 pp., I pi. Dec. 24, 1948. (Publ. 3951-) 



4. Chapin, Edward A. Type material of the species of clerid 



beetles described by Charles Schaeffer. 12 pp. Apr. 5, 1949. 

 (Publ. 3966.) 



5. Abbot, C. G. 1948-1949 report on the 27.0074-day cycle in 



Washington precipitation. 2 pp. Mar. 8, 1949. (Publ. 3980.) 



6. Abbot, C. G. A prediction of Washington temperature 1948 



(made January 1948). 6 pp., i fig. Mar. 8, 1949. (Publ. 3982.) 



7. Abbot, C. G. Montezuma solar-constant values and their periodic 



solar variations. 13 pp., 3 figs. Apr. 19, 1949. (Publ. 3981.) 



8. Raw, Frank. Some stages in the evolution of the nervous 



system and the fore-gut of the polychaet. 35 pp., 5 figs. 

 Aug. 4, 1949- (Publ. 3983.) 



9. Friedmann, Herbert. A new heron and a new owl from 



Venezuela. 3 pp. July 21, 1949. (Publ. 3985.) 



10. Hildebrand, Samuel F, A collection of fishes from Talara, 



Peru. 36 pp., 9 figs. Aug. 18, 1949. (Publ. 3986.) 



11. Glen, Robert. Larvae of the elaterid beetles of the tribe 



Lepturoidini (Coleoptera: Elateridae). 246 pp., 40 figs. 

 Apr. 19, 1950. (Publ. 3987.) 



12. Aldrich, L. B. Note on Fowle's spectroscopic method for the 



determination of aqueous vapor in the atmosphere. 6 pp., i pi., 

 2 figs. Sept. 20, 1949. (Publ. 3989.) 



13. Abbot, C. G. Short periodic solar variations and the tempera- 



tures of Washington and New York. 8 pp., 2 figs. Oct. 4, 

 1949. (Publ. 3990.) 



14. Aldrich, L. B. The Abbot silver-disk pyrheliometer. 11 pp., 



I pi., I fig. Dec. 8, 1949. (Publ. 3991.) 



15. Fenton, William N. The roll call of the Iroquois chiefs. A 



study of a mnemonic cane from the Six Nations Reserve. 

 -JZ PP-, 12 pis., 3 figs. Feb. 16, 1950. (Publ. 3995.) 



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