LIST OF PLATES. IX 



hemp, grass, or plaster used as a substitute for the natural body. 

 Fig. 2. A, nut ; B, cap ; C, thread. 



Plate X, Skeleton of a Grouse, ou Prairie Hen (Cupi- 

 donia ciipido, Baird), showing tlie different bones, as follows: — 

 a, the skull ; b, vertebra of the neck; c, humerus ; d, forearm ; f, pha« 

 langes ; g, furciila ; h, sternum; i, marginal indentations; j, ihigli; 

 k, tarsus; y, tibia; m, rump ; n, coccygus; A, ribs; B, lower joint of 

 thigh. 



