OF THE UPPER MISSOURI. 
135 
MINERALS AND GEOLOGICAL SPECIMENS, continued. 
274. 
275. 
Big Sioux. 
276. 
Mouth Jamesriver. 
do. 
277. 
do. 
278. 
Dorion’s hills. 
do. 
Bijoux hills. 
279. 
280. 
281. 
282. 
do. 
do. 
283. 
do. 
284. 
Near Bijoux hills. 
285. 
do. 
286. 
287. 
do. 
288. 
Great bend of Miss. 
289. 
do. 
290. 
Bijoux hills. 
291. 
292. 
do. 
293. 
do. 
294. 
do. 
295. 
do. 
1, do. 
Shyenne river. 
Fort Pierre. 
296. 
Mouth Shyenne. 
12 m. ab.Ft.Pierre. 
297. 
( Mouth of Can- 
( non-ball river. 
298. 
299. 
Long lake, Miss. 
300. 
do. 
301. 
Fort Pierre. 
302. 
Big Shyenne. 
303. 
do. 
Mussel-shell river. 
304. 
Milk river. 
305. 
306. 
Cannon-ball river. 
307. 
Formation No. 3. 
240. Soft yellow limestone, with Inoceramus 
problematicus , . ... . 
241. Gray marl, with Ostrea congesta, and fish 
remains (base of No. 3), 
242. do. do. 
243. Scale of Cyclocladus in No. 242, 
244. Fibrous carbonate of lime, with Ostrea con¬ 
gesta attached to surface, 
245. Yellow marl,. 
246. do. 
247. do. lighter, . 
248. Crystalline carbonate of lime, seams in marl, 
249. do. do. greenish in marl, 
250. Black plastic clay, upper part of No. 3, . 
251. Shale, argillaceous, with fish remains over 
No. 250, 
252. do. calcined by combustion of 
No. 250,. 
Formation No. 4. 
253. Blue clay, with Piyclioceras Mortoni , 
254. Yellow clay, with crystals of gypsum, 
255. Whitish alum clay, seams in No. 253. 
256. Hyd. silicate of magnesia, masses in forma 
tion No. 4, . 
257. Crystals sulphate baryta, . 
258. White aluminous earth in seams, 
259. Aluminous clay (No. 255), 
260. Ferruginous concretions throughout F. No. 
261. Crystalline argillaceous limestone (Cone in 
cone),. 
262. Crystals of selenite in clay beds, 
263. Selenite and fibrous carbonate lime,. 
264. Yellow clay, with selenite, 
265. Dark, argillaceous, shale, with Inoceramus 
266. Blue concretionary limestone, with Hostel 
laria, . 
267. Indurated clay, 
268. Decomposed shale (No. 253), . 
269. Brown hematite, 
270. do. more earthy, 
271. Dog-tooth spar, 
272. Gray arenaceous limestone, 
273. do. with carbonized matter and 
shells, ....... 
taining great numbers of fossils, 
do. containing large crustacean 
(undescribed),. 
■ystallized carbonate of lime, yellow, form¬ 
ing nucleus of concretions, . 
clay bed, 
Formation No. 5. 
do. softer, 
Yellowstone river, 
do. 
do. 
Forks of Shyenne. 
do. 
do. 
Grand river. 
Cannon-ball river. 
Grand river. 
Fort Pierre, 
do. 
Mussel-shell river. 
Fort Lookout. 
do. 
do. do. decomposed, do. 
oft fine sandstone, with Rostellaria, . do. 
erruginous sandstone, with Cytherea, . do. 
licified wood, with bark, . . . Long lake, 
do. bored by Teredo globosa, do. 
Tertiary. 
A. Lignite Basin. 
ellow arenaceous clay on Cretaceous rocks, 
ellowish indurated clay, with freshwater 
shells over No. 296, .... Long lake, 
ray sand, fine, over No. 297, ... do. 
s, do. 
d, do. 
11 
. Cherry creek. 
i, Fort Clark. 
. do. 
. do. 
of genus Cyrena,. 
