ANNIVERSARY ADDRESS OF THE PRESIDENT. 49 
Fig. 2.—Inferior view of the Extremity of the Mandible of Diclonius 
mirabilis, Cope. (After Cope, Proc. Acad. Nat. Sci. Philad. 
1833, pl. vi.) 
A\ Nee biyiay ‘ 
RE Want Ne 
Fig. 3.—Side view of the Cranium of Xenophrys monticola, Giinth. 
(After Parker, Phil. ‘l'rans. (1881), vol. clxxi. pl. xxiii. fig. 7.) 
‘mm 
