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764. A portion of a rib of, probably, the Mastodon giganteus. 



From the tertiary deposits of Ohio. Purchased. 



765. The proximal portion of one of the left posterior vertebral ribs of, pro- 



bably, the Mastodon giganteus. 



From the tertiary deposits of Ohio. Purchased. 



766. A portion of a right posterior rib of, probably, the Mastodon giganteus. 



From the tertiary deposits, Ohio. Purchased. 



767- The manubrium sterni of the Mastodon giganteus. 



From the tertiary formations of the Ohio, North America. 



Purchased. 



768. A portion of the head of the left humerus of the Mastodon giganteus. 



From the tertiary formations of Ohio. Purchased. 



769. The shaft and distal extremity of the left humerus of the Mastodon 

 giganteus : it is thicker in proportion to its length than in the Elephant 

 or Mammoth, the deltoidean ridge is continued lower down, and the 

 fossa above the fore-part of the articular surface is deeper. 



From the tertiary formations of Ohio. Purchased. 



77®- The distal end of the left humerus of a Mastodon giganteus. 



From the tertiary deposits of Ohio. Purchased. 



77\- The right ulna of the Mastodon giganteus. It presents the same short 

 and massive proportions as the humerus, and shows that the Mastodon 

 stood lower in proportion to its size than the Elephant or Mammoth. 

 From the tertiary deposits of Ohio. Purchased. 



77'2- The left os cuneiforme of the Mastodon giganteus. 

 From the tertiarv formations of Ohio. 



Purchased. 



773. The metacarpal bone of the second toe of the right fore-foot of the 

 Mastodon giganteus. 



From the tertiary formations of Ohio. Purchased. 



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