THE MANDIBULAR AND HYOID MUSCLES OF :UA:UMALS. 645 
Text-figures. 
Figs. 65-67. — Sketclies of model of developing masticatory muscles 
of rabbit, embryo 13 mm. crown-rump length ; fig. 65 from inside, fig. 
66 from front, fig. 67 from outside. 
Figs. 68, 69. — Sketches of model of developing masticatory muscles 
of rabbit, embryo 16 mm. crown-rump length ; fig. 68 from inside, fig. 
69 from outside. 
Figs. 70, 71. — Sketches of model of developing masticatory muscles 
of pig, embryo 19 mm. crown-rump length ; fig. 70 from inside, fig. 71 
from outside. 
Figs. 72. 73. — Sketches of model of developing masticatory muscles 
of pig, embryo 21 mm. crown-rump length ; fig. 72 from inside, fig. 73 
from outside. 
Figs. 1-28, 39-41, 43 were drawn l)y Mr. E. E. Shellard. 
Figs. 65-73 were drawn by Mr. C. W. Sharpe. 
