or 
MR. W. K, PARKER ON THE SKULL IN THE MAMMALIA, 
Tatusia hybrida; embryo: 2 taches long (3rd stage); 
endocranium ; wpper vies il ea 
The same; end view. . ul 
The same ; auditory region; wuwter View . . . . . | 
Tatusia hybrida; embrys; “ saches long (tnd stage); 
auditory region ; outer vio 
Tutusia peba; embryo ; 3 inctes long (4th stage); skull; 
lower view... . 
The same ; vertical seetion or akull; inner view . . . 
The same; skull; endview . . ..... 
The same ; ossicula auditts 
Namber of 
times 
magnified, 
