CONTENTS 



1. MiTMAN, Carl W. Some practical aspects of fuel economy. 



June 2, 1923. 19 pp. (Publ. 2715.) 



2. ScHROEDER, Henry. Historv of electric light. August 15, 1923. 



95 PpM 96 illus. (Publ. 2717.) 



3. Springer, Frank. On the fossil crinoid family Catillocriniclae. 



August 3, 1923. 41 pp., 5 pis. (Publ. 2718.) 



4. Report on Cooperative Educational and Research Work 



Carried on by the Smithsonian Institution and Its 

 Branches. July 28, 1923. 30 pp. (Publ. 2719.) 



5. Miller, Gerrit S., Jr. The telescoping of the Cetacean skull. 



August 31, 1923. 70 pp., 8 pis. (Publ. 2720.) 



6. Oberholser, Harry C. Descriptions of new East Indian birds 



of the families Turdidae, Sylviidae, Pycnonotidae, and Musci- 

 capidae. July 16, 1923. 9 pp. (Publ. 2721.) 



7. Kellogg, Remington. Description of an apparently new toothed 



cetacean from South Carolina. July 25, 1923. 7 pp., 2 pis. 

 (Publ. 2723.) 



8. Fewkes, J. Walter. Additional designs on prehistoric Mimbres 



pottery. January 22, 1924. 46 pp., loi figs. (Publ. 2748.) 



9. Fisher, Willard J. The brightness of lunar eclipses 1860- 



1922. February 18, 1924. 61 pp. (Publ. 2751.) 



10. Explorations and Field- Work op the Smithsonian Insti- 



tution IN 1923. March 31, 1924. 128 pp., 123 figs. (Publ. 



2752.) 



11. Palmer, Howard. The Freshfield Glacier, Canadian Rockies. 



August 2, 1924. 16 pp., 9 pis. (Publ. 2757.) 



12. Snyder, Thomas E. " Adaptations " to social life : the termites 



(Isoptera). September 2, 1924. 14 pp., 3 pis. (Publ. 2786.) 



13. Fewkes, J. Walter. Preliminary archeological explorations at 



Weeden Island, Florida. October 14, 1924. 26 pp., 21 pis. 

 (Publ. 2787.) 



(v) 



