a ee ee oes 
Geology. 433 
"80 per cent of the cellulose of the paper pulp was digested. The animals 
_ having gained 7 Ibs. in as many days. 
ae) 
hese experiments are to be continued, and more particularly with a 
view of ascertaining whether any nourishing effect is to be attributed to 
] 
the cellulose —Sracxuarpt’s Chemischer Ackersman, 1860, No.1, p.51. 
II. GEOLOGY. 
and probably forming a part of the same basin. 
Ihave, in a former paper, suggested that fresh-water deposits near Fort 
dger are probably on a parallel with the estuary beds of Judith river, 
Which at that time were not positively known to be Tertiary. The facts 
ow 
of the Mollusca. We have already, in a former paper, noted the fact that 
a large portion of the fossils peculiar to the Cretaceous formation No. 5, 
are closely similar to true Tertiary types and in most of the localities the 
transition from No. 5 to the estuary beds is scarcely perceptible. On the 
North P latte, especially at Deer Creek, No. 5, which is very largely de- 
of the stream, where the beds are but slightly disturbed, the order of se- 
i D 
0. hes : 
Unios and other fresh-water shells, together with impressions 
leaves identical with those occurring s0 abundantly in the Upper Mis- 
“uri and Yellow Stone Tertiary strata, and furthermore these beds on the 
* The Cre ; divided into five formations, which 
conveni ——. be eat’ mln ps he in ascending order, 1, 2, 8, dc. 
SECOND SERIES, Vor. XXIX, Ne. 87--MAY, 1960. © 
55 
igs be as the upper portion of N 
