232 Scientific Intelligence. 
uniting into one large spit, as a part of South America, all the 
islands to the south of it. Thus the bulk of the water forced into 
the Caribbean Sea has a comparatively high temperature,—an 
average, probably, of the temperature of the 300-fathom line. 
e co 
t : 
with this huge mass of water pouring into the Gulf of Mexico, 
there should be anything like a cold current forcing its way up- 
hill into the Straits of Florida, as has been asserted on theoreti- 
cal grounds. The channel at Gun Key can only discharge the 
ee having a great velocity. 
T; t 
arman, w ‘companied 
West Indies, after we left the “ Blake” at Barbadoes, for the pur- 
pose of making collections of Reptiles and Fishes, with a view 
. . t rd 
av 2 
rscid gta, the Reptiles we collected is a gigantic land tortoise, 
found at Porto Rico, differing only in size from the land turtle 
It is closely allied to the gigantic turtles of the Gallopagos, and 
to the fossil land turtles, of which fragments have been described 
by the late Professor Wyman. These were collected by Mr. A. 
Julien at Sombrero, in the phosphate beds of the island. 
,, 2: Mootprint in the Mesozoie rocks of New Jersey.—Mr. J. C. 
Russ LL has obtained at Boonton, New Jersey, a fine three-toed 
hoi rack, in the Mesozoic rock of the region. It meas- 
length, and 5°5 in width. 
Jrom the Anthracite Coal Measures, of the Maha- 
a the Ellangowan Colliery.—A slab, having upot 
