ee eG oP aa | ae 
G. W. Hawes— Trap Rocks of the Connecticut Valley. 185 
unknown. He states that it is 9 feet long; 11 inches in cir- 
cumference at the base, tapering off to a fine point. There are 
from 145 to 150 suckers, i in two alternating rows, those at the 
base being half an inch in diameter. The relatively small size 
of the suckers and great length of the arms show that this arm 
cannot belong to the same species as our Architeuthis monachus, 
which Mr. Kent thought probable. But as the arms o 
Ae and Lohigo Hartingi are still unknown, it might belong 
those species; or it may belong to the species 
Sasived but not merist by the officers of the “ Alecton,” in 
1861, near Teneriffe, and named Loligo Bouyert by Crosse ‘and 
Fischer, but known only from the imperfect descriptions of it 
given by the officers, and a sketch of it ahs bone while the 
crew were making unsuccessful attempts to get it on boar 
The body of this one was —— at 15 to 18 feet i in length, 
with the arms somewhat s 
EXPLANATION OF PLATE. 
Plate v. mh 14. Upper jaw of Architeuthis Ea as V. (No. 10); natural size. 
Fi . Lower _ of the — tted line shows the parts that 
are ead on the opposi 
Figure 16. Part of lower jaw of “Architeuthis princeps (No. 1); natural size. 
Art. XXI.— Contributions from the Sheffield Laboratory of Yale 
College. No. XXXIL—The shi Rocks of the Connecticut 
Valley : by Georce W. Haw 
Ir has been already stated in this Journal* that Mr. E. S. Dana 
and myself have been engaged in the study of the eruptive 
rocks of the Connecticut Valley. Some of the results obtained 
by me through chemical analysis are here presented. 
The dikes “which intersect the Mesozoic sandstone and the 
nie s. The ana of some 2 i ese dips show them to 
variation between the extreme cases can be found; but the at- 
tempt will be made to show, by the following analyses, the 
*See Abstract of a paper on the Trap Rocks of the Connecticut Valley, by . 
8. Dena this Journal, III, viii, Gee (Read before the American Association at 
the Hartford meeting, rely: 74.) 
