LIST OF ILLUSTRATIONS IX 



Facing page 



22. The dewlap of (o) Ctenosaura bakeri, female; (6) C. palearis, male; (c) C. 



palearis, female 56 



23. Adults of Ctenosaura palearis (left) female; (right) male 56 



24. Sacral region of adult male of Ctenosaura quinquecarinata 56 



25. Sacral region of adult male of Ctenosaura quinquecarinata 56 



26. Adult male of Ctenosaura quinquecarinata 56 



27. Adult male of Ctenosaura clarki 56 



28. Adult male of Ctenosaura erythromelas 56 



29. Adult male of Ctenosaura erythromelas 56 



30. Adult male of Ctenosaura defensor 56 



Fossil nutlets of the genus Lithospermum 



By Edward W. Berry 



1. Fossil nutlets of the genus Lithospermum 4 



Fire-making apparatus in the United States National 



Museum 



By Walter Hough 



1. Southern Thnkit drill 72 



2. British Guiana, West Indian, and Mexican drills 72 



3. Japanese sacred fire drill, full view and section 72 



4. Bhils, India, and Australian drills 72 



5. Hindu sacred fire drill (replica) 72 



6. East Indian fire drills 72 



7. African fire drills 72 



8. Bamboo fire saw, Philippines 72 



9. Bamboo strike-a-lights and Battak (Negrito) fire thong 72 



10. Bamboo strike-a-light, Malaysia 72 



1 1 . Fire pistons, Malaysia 72 



Contribution to the comparative anatomy of the eared 



AND EARLESS SEALS (gENERA ZaLOPHUS AND PhOCa) 



By A. Brazier Howell 



1. Mounted skeletons of an eared seal (Otariidae, below) and an earless 



gij,^ ^ sealf (Phocidae, above) 142 



Zeolites from Hitter Hot Spring, Grant County, Oregon 

 By D. F. Hewett, Earl V. Shannon, and Forest A. Gonyer 



1. a, Chabazite; h, Mesolite and Pseudomesolite; and c, Thomsonite 18 



2. a, Pseudomesolite and Analcite; and h, Stilbite 18 



Field notes on vertebrates collected by the Smithsonian 

 Chrysler East African Expedition op 1926 



By Arthur Loveridge 



l.|Typical Wagogo' kraal^in Dodoma^ district. Wagogo cattle sheltering 



under mimosa trees. Indian shops in Dodoma township 70 



2. Combined! leopard trap and cage. Building stockade at Tulo. A 



^ corner^of^the bird^room 70 



