164 NATURAL HISTORY MISCELLANY. 
way up, and above this of a light yellow compact marl. It was evidently, 
at one time, continuous with some bluffs of the same character a mile 
south of it. The 30th we encamped at Monument Station, which re- 
ceives its name from a number of columns of the same character as Castle 
Rock. There is a company of Infantry stationed here under command of 
Brevet. Lt. Col. Cunningham. As I rode up in front of Col. Cunning- 
ri 
long and is well preserved. The Colonel has already dug out sixty verte- 
re. He estimates the length of the reptile at thirty feet. He was lying 
in a stratum of brick-red clay, below which is the shale and above the 
marl, which is described as forming Castle Rock. By hunting in the same 
locality I succeeded in finding a large number of shark's teeth, and the 
tooth of a Saurian. On the day following I found a place where the shale 
I have spoken of was uncovered, and on its surface picked up a quantity 
broken up, but still sufficiently preserved to show that some unfortunate 
Saurian had been buried there. Between this place and Fort Wallace I 
obtained numerous specimens of fishes’ vertebre, and three vertebra of & 
smaller Saurian. I am informed by Ass’t Surgeon Turner, U. S. N., that 
he has forwarded to the Museum of the Academy of Natural Sciences, at 
Philadelphia, a son perfect specimen of a Saurian, which he estimates to 
l a 
as, 
built of a nae yao marl, which may be readily sawed into blocks with 
a common hand-saw. A ett of Spanish Dagger ( Yucca) is very abun- 
dant here, and is now in bloom, as is also the Mammilaria macromeris, 
which has a beautiful rose colored blossom, and the prickly-pear is begin- 
ning to put forth its large yellow blossoms 
We have in camp three young antelopes caught upon the march. They 
have become quite tame. The black-tailed deer is found in this vicinity, 
which is about as far east as it ranges. I have slighted the centipedes 
and the rattlesnakes, but it is not because they are scarce. One of the 
officers shook a large centipede from his boot the other morning, and 
nearly every one can produce a handful of rattles as proof that rattle- 
es are becoming scarce. — Dn. G. M. STERNBERG, U. 

MICROSCOPY. 
= NEW PROCESS OF 
THE MICROSCO: 
esigua valuable information, of a practical character, is to be found in 
books professing to treat of the subject of preparing and mounting 
specimens of the lower families of Algæ, so as to exhibit in a satisfactory 
PREPARING SPECIMENS 0 TOUS AL 
PE.— The working oeste well kuone how little , 
" 
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