Fig. 1 
Fig. 2 
Fig. 3 
Fig. 4 
Fig. 5 
Fig. 6 
Fig. 7 
Fig. 8 
Fig. 9 
Fig. 10. 
Fig. 1 
Fig. 2 
Fig. 3 
Fie. 4 
Fig. 5 
Fig. 6. 
Fig. 7 
Fig. 8 
Pig. 9 
Fig. 10. 
Fig. 11. 
DEVELOPMENT OF THE SKULL IN THE PIG. 339 
Fig. 8. 8th section of same. x 73 diameters. 
Fig. 8". Mandibular portion of same section. Xx 7} diameters. 
Fig. 9. 9th section of nasal region. x 7} diameters. 
Fig. 10. 10th section of same. x 7} diameters. 
Fig. 11. 11th section of same. x 7} diameters. 
Fig. 12. 12th section of same. x 7} diameters. 
Fig. 15. 15th section of same, head. > 7} diameters. 
Fig. 14. 14th section of same, head. x 74 diameters. 
Fig. 14". Part of fig. 14. x 14 diameters. 
PLATE XXXII. 
Third Stage (continued). 
. 15th section of same, head. x 7 diameters. 
. 16th section of same, head. x 7 diameters. 
. 17th section of same, head. X 7 diameters. 
. 18th section of same, head. x 7 diameters. 
. 19th section of same (part back view). x 14 diameters. 
. 20th section of same, head (back view). x 10 diameters. 
. 21st section of same (part back view). x 14 diameters. 
. 21st part of section (front view). x 14 diameters. 
. Hinder part of a section taken horizontally through the nasal region (front view). 
x 10 diameters. 
A similar section of same taken further backwards and lower down (back view). 
x 10 diameters. 
PLATE XXXIIL. 
Third Stage (continued). 
. 22nd section of the same head (part seen from the front). x 14 diameters. 
. Vertical section of head. » 5 diameters. 
. The same, with brain and septum nasi removed. Xx 5 diameters. 
Fourth Stage-—Embryo Pig, 24 inches long. 
. Vertically transverse section through fore part of brain. x 5 diameters. 
. A similar section through fore part of orbit (part). x 5 diameters. 
A like section through hind part of orbit (part). > 5 diameters. 
. A similar section through sphenoid (part). x 5 diameters. 
. Part of same section (right side). x 14 diameters. 
. A similar section through the fore part of auditory sac. x 7 diameters. 
Another section through hinder part of same. x 14 diameters. 
Fifth Stage.—Embryo Pig, 3 inches long. 
Section through posterior sphenoid. x 54 diameters. 
