DEVELOPMENT AND SUCCESSION OF TEETH IN PERAMELES. 587 
planation of the projections from the dental lamina marked “a” and “db” 
see text. x 100. 
Fig. 50.—(Stace V.) U.J., H.S. Region between p? and m2. xX 100. 
Fie. 51.—U. J., C. S. m+ passing through its protocone. x 80. 
Fie. 52.—U. J, C. 8. m2. x 80. 
Fig. 53.—U. J., C. S. m2 in another series, and nearer its posterior end 
than Fig. 52. x 80. 
Fic. 54.—U. J., C. 8. Anlage of m3. x 80. 
Fie, 55.—Z.J., 0. 8. iz. x 100. 
Fic. 56.—L. J., C. 8. iz some distance behind Fig. 55, showing diz. x 100. 
Fie. 57.—L. J., C. 8. tg andiz. x 50. 
Fie. 58.—Z. J., C. S. Dental lamina in front of ; with d&. x 210. 
Stace V. 
Fie. 59.—U. J., C. 8S. £. x 50. 
Fic. 59a.—(Stace VII.) U.S,C. 8.5. 50. 
Fie. 598.—(Stace VIII.) U.d.,C.8.£ x 50. 
Fie. 60.—U. J., C. S. dp® and dental lamina in region of future p2. x 165. 
Fie. 61.—U. J., C. 8. Anlage of m3. x 220. 
Stace VI. 
Fie. 62.—U. J, 0. 8. *. =x 50. 
Fic. 63.—U. J., C. S. dp® with Anlage of p®. x 50. 
Fic. 64.—L. J., C. 8. dpz with Anlage of pz. x 120. 
Stace VII. 
Fic. 65.—ZL. J., C. §. Passing through the forwardly directed apex of #;, 
and showing the enamel-germ of an incisor (r. e. 0.) which arises from the 
dental lamina in front of 7; x 210. 
Fie. 66.—L. J., C. S. Through iz, showing diz independently attached to 
the oral epithelium. x 150. 
Fie. 664.—(Stace V.) JZ. J., C. §. Through 15, showing di; becoming 
attached to the oral epithelium labially from the neck of the dental lamina. 
x 150. 
Fic. 67.—(Stacz IX.) U.J., C0. 8. dp® with Anlage of p?. x 30. 
Fie. 68.—(Stace VI.) U.J., C. S. Posterior portion of m2. x 120. 
Fie. 68a.—(Stace VI.) U.J., C. 8. Some distance behind Fig. 68, show- 
ing Anlage of m&. x 120. 
Fic. 69.—(Stace VIIL) U.J., C. 8S. Enamel-germ of m2. x 120. 
