WILLARD: — Cranial Nerves of Anolis carolinensis. 
PLATE 7. 
Figs. 20 and 21. Transverse sections (Nos. 1485 and 1441) through the 
posterior part of the middle ear cavity, showing the relation of the chorda 
tympani to the igament of the extra-columella (lig. tym.). Fig. 20 shows also 
foramina for nerve X and the second root of nerve XII. Fig. 21 shows the 
laxator tympani muscle continuing caudad from the place of insertion of the 
ligament. 
Fig. 22. Transverse section (No. 1453) through the ganglion of nerve X 
and the three roots of nerve XII before their union, and immediately anterior 
to the juncture of Jacobson’s anastomosis with the main sympathetic trunk. 
Fig. 23. Transverse section (No. 1480) through the anterior end of the 
petrosal ganglion. The skeletal attachment of the constrictor of the internal 
jugular vein is shown, also the root and distribution, in part, of the first spimal 
nerve. 
Fig. 24. Transverse section (No. 1595) showing ganglion of the third spinal 
nerve and the position of the sympathetic trunk and ramus ‘visceralis X on 
the dorsal side of the thymus gland. 
— 
