278 Scientific Intelligence. 
alone, as we have seen, will suffice. Besides, heat entering ice 
could not Soba: a mechanical pressure that would move the gla- 
cier; for heat produces contraction of volume, not expansion, 
True, heat no doubt destroys the crystalline structure of the 
ice-molecule by tearing the constituent particles separate; but 
nevertheless the volume of the mass is diminished by this process, 
for ice in losing its crystalline structure, or, in other words, in pas- 
sing from i ice to wate r, decreases in volume. 
é Reptilian remains ; by Prof. Copx, (Proce. 
-—The fossil whi 
Plesiosauroid from Kansas, discovered by Wm. E. Webb, of 
Topeka, which possessed deeply biconcave vertebra, and anchy- 
losed neural arches, with the zygapophyses directed after the man- 
ner usual among vertebrates, e former was thus shown to 
belong to the true Sauropterygia, and not to the Streptosauria, of 
which Elasmosaurus was t everal distal caudals we 
bones. The form was regarc ew, 
latipinnis, from the great “relative stoutness of the pa 
losed to the formas in length about sixteen inches ; distal width 
ourteen. The confluence of the first series of tarsal ea with 
each other, and with the tibia, he regarded as a most interesting 
m 
: lo-caleaneum, and demonstrated what the speaker had 
lready asserted, that the fibula of Ignanodon and Hadrosaurus 
had been i inverted by their describers. The mec sige) cavity was 
filled with oom cancellous tissue. The spec ich was one 
an — sha specimen of Pe pagel: : Foulkii, he 
ma manis. 
5. Subp hear nite ‘of the island of Saba, in the Dutch West 
Indies, (trom eport on the Deposit, by N. S. Hr earxs.)—The 
Island of Saba belongs to the volcanic range of the Carribee oF — 
Windward Isla 
A few miles to ae south and west of Saba there is an extensive 
coral reef, upon whieh soundin ings vary from 7 to 140 fathoms } in 
depth; between this reef and the island there is eee no 
