_ face, and in many points showing apian affinities. 
~ from the surrounding rock-mass their angles can be measu! 
with a contact goniometer. Most of them are twinned accord 
2 ; 1886, p. 33. _ 
660 General Notes. [j 
case of Belodon buceros* Although there is no parietal fora 
of the skull, the epiphysis is so enormous as to lead to the b 
that the pineal eye was present. It had communication with- 
orbit by a canal on each side, which Professor Cope calls t 
orbitopineal canal. 
Tertiary.—Lydekker recently described Scelidotherium ¢ 
lense, from Tarapaca, Chili. It is characterized by extreme 
short nasals. He also described as new S. dravardi, from 
Argentine Republic, a form which had previously been inclu 
by Owen with the typical S. /eptocephalum. : 
MINERALOGY AND PETROGRAPHY:' 
Be aphical News.—In the August number of the Ge 
ical Magazine Mr. J. J. H. Teall? describes an interesting suite 
hornblende rocks which occur as intrusive sheets and bosses "i 
the limestones and quartzites of the Assynt district in Scotland. l 
From the description which the author gives of them, these roc% : 
appear to be somewhat similar to the camptonite of Dr. Hawes i 
Three types are distinguished,—viz., hornblende porphyrites, 
diorites, and porphyrite diorites. In the last two classes hor! 
blende is abundant in well-formed porphyritic crystals, bount 
by the planes œP, «Pa, —P and oP. Some of the larger 
these crystals are so perfectly developed that when separal 
ing to the ordinary law, and many present fine instances of 2 
1 Edited by Dr. W. S. BAYLEY, Madison, Wisconsin. 
? Geol. Magazine, August, 1886, p. 346. Gesteiner 
n ar New Hampshire, p. 160, ef seg.; Rcsenbusch’s Massige 
