PLATE XXIX. 



FIG. 

 1. 



2. 

 3. 



4. 



5. 



Bos tauru^ (embryo 1 inch 4 lines long). 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 1C. 

 17. 

 18. 

 19. 

 20. 

 21. 



22. 



23. 

 24. 



25. 

 26. 

 27. 



28. 



29. 

 30. 



Do. 

 Do. 



Do. 

 Do. 

 Do. 



(do., 2 inches 8 lines long), 

 (do., 6 inches 6 lines long). 



Right scapula, outer, and Sternum, 



inner view 



Sternum ; inner view . 

 Front face of mesosternum, and 



section of 2nd sternal ribs 

 (do., 6 inches 6 lines long). Section of 2nd mesosternal region, 



near 3rd sternal ribs 

 (do.) Section of 5th mesosternal region, 



and 6th sternal ribs . 

 (do.) Another section through the same 



osseous centre 



Trayulus javanicus 1 (adult). Sternum; upper view . 

 Hyrax capensis* (do.) 2nd rib, lower part 



Do. (half-grown). Do. do. . '. 



Do. (a week or two old). Part of Sternum, and 2nd ribs 

 Sitsscrofa* (embryo 4 inches long). Sternum ; inner view 



Do. (do.) 



Do. (adult). 



Equus asinu/ (2 weeks old). 

 Do. (do.) 



Do. (do.) 



Equus cadallus 6 (adult). 



Fore part of Sternum ; side view 

 Sternum ; inner view 

 Fore part of Sternum ; side view 

 Horizontal section through the same 

 Vertical section of presternum 

 Fore part of Sternum ; side view 



side view 



Hippopotamus amphibius^ (half-grown). Fore part of Sternum 



Do. (adult). Do. . , 



Tapirus indicits 8 (adult). Fore part of Sternum ; side view. 

 Do. (do.) End of mesosternum ; outer view 



Manatus americanus* (5 feet 5 inches long.) Left half of Sternum, with ribs 



attached ; inner view 



Delphinus ? (embryo 9 inches long). Right scapula, outer, and Sternum, 



inner view 



Do. (do.) Section of 1st mesosternal 



Do. (do.) Do., showing junction of 2nd rib 



with Sternum 



Do., showing the joint of 3rd rib 

 Part of fig. 23 



Do. 

 Do. 

 Do. 



(do.) 

 (do.) 



(do.) 



Do. 



Do. 

 Do. 



(do.) 



(do.) 

 (do.) 



Section showing junction of 5th 



rib with vertebra 

 Section of 2nd rib at the sterno- 



vertebral joint 



Section of lower part of 3rd rib . 

 Part of fig. 25 



SIZE. 



6 diam. 

 4 do. 



do. 

 do. 

 do. 



do. 



nat. size, 

 reduced. 



do. 



nat. size. 

 2| diam. 



4 do. 



j nat. size, 

 nat. size. 

 2 diam. 

 2 do. 



5 nat. size, 

 do. 

 do. 

 do. 

 do. 



^ nat. size. 



2 diam. 



5 do. 



do. 



do. 



16 do. 



8 do. 



do. 



do. 



64 do. 



-221. 



1 See pp. 219221. 3 See pp. 219 

 5 See pp. 219 221. 6 See pp. 219 221 

 9 See pp. 218, 219. 



3 See p. 222. 

 7 See pp. 219222. 

 10 See pp. 217, 218. 



* See pp. 219- 

 8 See pp. 219- 



-222. 

 -222. 



