Osteological Symmetry of the Camel. 65S 



The articular lengths of the metacarpus and of the metatarsus 

 are identical ; as appear to be the articular lengths of the cubitus 

 and of the femur. 



The difference of the articular length in the first and second 

 bones of each limb is equal to the length of the first pastern of 

 the limb. 



In all animals there seems to be a normal locality for the 

 entrance of the arteries that nourish the interior of the bones : 

 but these arteries being liable to the same variations as the 

 tubes that convey the fluids to the less compact substances of 

 the body, the distance of the medullary arteries from the joints 

 is liere unnoted. 



The bones of the atlantal limbs of the Bactrian Camel are, in 

 their breadth and thickness, more robust and more symmetrical 

 than the bones of the sacral limbs. 



The middle breadths of the atlantal limbs are consecutively, 



9. 9- 6. 4 proportional parts : — Sum 28. 

 Their middle thicknesses are consecutively, 



8. Q. 4 proportional parts : — Sum 18. 



And their middle girths are consecutively, 



30. 26. 20. 12 proportional parts : — Sum 88. 

 The middle breadths of the sacral limbs are consecutively, 



7. 8. 5. 3 proportional parts : — Sum 23. 

 Their middle thicknesses are consecutively, 



6. 5. 4 proportional parts : — Sum 13. 



And their middle girths are consecutively, 



22. 20. 17. 10 proportional parts : — Sum 69. 

 So that the thickness of the first pasterns being omitted, the 

 sums of the middle breadth, thickness, and girth in the atlantal 

 limbs are even numbers of proportional parts ; while the similar 

 dimensions in the sacral limbs are odd numbers of these parts. 

 VOL. XVI. 3 z There 



