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118. RECENT DISCOVERIES OF DIATOMACEOUS EARTH IN THE 
ADIRONDACKS. By Charles F. Cox. 
Extensive deposits of Diatomaceous earth have been exposed 
during the past year in various ponds and lakes in Township 
43, Herkimer Co., N. Y., on the western side of the Adiron- 
dack Mountains. These deposits consist of the siliceous frus- 
tules (cell-walls) of the microscopic alge known as diatoms. 
Exhibits: 1. Specimens of the material as dug from the de- 
posits. 2. Prepared slides under the microscope. 
DEPARTMENT OF PALASONTOLOGY. 
In charge of J. L. Wortman, M.D. 
II9. SPECIMEN OF TRIARTHRUS BECKII, with antenne and 
other appendages, described in the Transactions for May, 
1893. These are the first trilobites with such appendages 
discovered. Described and exhibited by W. D. Matthew. 
120. ORISKANY FOSSILS, from Ulster Co., N. Y., exhibited by 
G. Van Ingen. These fossils are a portion of the material 
now being studied by Mr. Van Ingen. 
121. FOSSIL PLANTS FROM THE CRETACEOUS FORMATION ON 
LonG ISLAND, described in Transactions, Vol. XII. (1893), 
Ppae222-237, pl. v. vila; sand) Bull Wor. Bot. Club XOX: 
(1894), pp. 49-65, pl. 174-180. 
122. SILICIFIED PALZOZOIC FOSSILS, from the “yellow gravel” 
of Long Island. 
Nos. 121-122 exhibited by Arthur Hollick. 
123. SKELETON OF PATRIOFELIS TIGRINUS Cope, a carnivo- 
rous or flesh-eating mammal, from the eocene deposits of the 
Bridger Basin, Wyoming. This animal has previously been 
known from a few fragments of the jaws and limbs only. It 
was found imbedded in the rock (a sandy clay), and was 
originally buried to the depth of about 1,000 feet. The original 
matrix has been entirely removed. Amer. Mus. Collection. 
124. CRAYON DRAWING OF PATRIOFELIS TIGRINUS, natural 
size. Amer. Mus. Collection. 
