AM. JOUR. SCl., Vol. XIX, 1880. 
Figure 1,—Scapular arch of sient — _ front view, one 
1 
sixteenth natural s ize ; pula; aged) oid cavity ; os. 
right sternal bone; os” its pe rnal bone os hee 
Figure 2,—Left sternal bone ; ——* ral ate a. superior view; b. 
inferior view; c. face for co ge gee margin next to median line; e. 
inner front margin ; p. pos 
Figure 3.—Scapular arch of poe Ried Americana, Lath. ; ; Load Parker) ; 
three-fourths natural size; seen from below. Letters a 
