OF THE UPPER MISSOURI. 
O i 
MINERALS AND GEOLOGICAL SPECIMENS, continued. 
379. Tufaeeous, concretionary limestone, . . White river. 
380. Cream-colored marl, containing Oreodon ,. do. 
Bed E. 
381. Sofc white grit, .... 
382. Conglomerate, above No. 381, . 
383. do. with granitic pebbles, 
384. Soft white sandstone, with Oreodon , 
385. Calcareous conglomerate, 
386. Conglomerate, ..... 
387. Calcareous concretions in marl, under No 
386, .... 
388. Sulphate baryta,foliated crystals in No. 387, 
389. Green silicious concretions in limestone, 
containing freshwater shells, 
390. do. do. do. 
391. Coarse, whitish, sandstone, 
392. Conglomerate, ...... 
393. Quartzose conglomerate, . . . . 
394. White infusorial earth, base of bed e, local, 
395. do. do. do. 
397. Indurated marl, white, 
398. Silicious tufa, . 
399. White marl, 
400. Whitish cherty limestone, 
401. White foliated limestone, . 
403. White tufaeeous marl, containing fresh 
water shells, 
404. Silicified wood, 
405. do. 
406. Silicious sinter, 
407. Carbonate of lime, . 
408. Ferruginous conglomerate, 
409. Micaceous granite, . 
410. Hornblendic rock, . 
411. Limestone, with corals, . 
412. do. with Spirifer, 
413. do. with Ortlioceratite, 
414. do. with Syringopora , 
415. Chalcedony, .... 
416. Silicified wood, 
417. Limestone, with red chert, 
do. 
do. 
do. 
do. 
Fort Laramie. 
Bijoux hills. 
do. 
do. 
Medicine hills, 
do. 
Bad Land creek. 
Grindstone hill, 
do. 
Running water. 
Loup fork. 
Warren’s fork. 
Niobrara river. 
Loup fork, 
do. 
Niobrara river. 
Loup fork. 
Running water, 
do. 
Sage creek. 
Bear peak. 
Yellowstone river, 
do. 
do. 
do. 
do. 
do. 
do. 
do. 
do. 
do. 
418. Concretions from yellow marl, . 
419. Silicious sinter from springs, 
420. Sand from sand hills, .... 
421. Very fine gray sand, from sand dune, 
422. Prismatic iron ore,. 
423. Efflorescence on soil, .... 
424. Compact basalt, protruded, 
425. Trachyte,. 
426. Bed pipe-stone, Catlinite, obtained by Maj. 
H. Day, U. S. A., from near source of 
Big Sioux, viz. Nicollet, p. 16, 
Upper Silurian. 
427. Yellowish gray silicious limestone, with 
Favosites, collected by Mr. Drexler, . 
428. Yellowish limestone, with undetermined 
corals,. 
429. Chalcedony from limestone, 
430. Cherty limestone, with Sgringopora, 
431. do. with Uahjsites escharoides, 
432. do. with Streptalasmat 
Carboniferous and Permian. 
433. Impure coal, slaty, .... 
434. Compact cherty limestone, 
435. Blue cherty limestone, 
436. Dark, argillaceous, shaly limestone, . 
437. Impure coal, laminated, . 
438. Yellowish magnesian limestone, with Mya 
Una ,. 
439. Dark indurated clay, . . * 
440. Nodular chert, ..... 
441. Fine yellow clay, .... 
442. Yellowish gray magnesian limestone, witl 
spines of Archeocidaris, 
443. Blue cherty limestone with Ufonotis,. 
444. “Cone in cone” overlying coal bed, . 
445. Fibrous carbonate of lime in thin layers with 
Ostrea congesta attached, Cretaceous 
formation No. 3,. 
Big Sioux. 
Black hills, 
do. 
Powder river. 
Mouth Big Horn. 
Cannon-ball river. 
Bad landsof Judith 
do. 
f Near South Pass 
j Rocky Mts. 
do. 
do. 
do. 
do. 
do. 
j Near mouth of 
( Platte river. 
Fort Leavenworth. 
do. 
do. 
f 12 m. beyond Ft. 
-! Leavenworth on 
( Ft. Riley road. 
Deep creek, Iv. T. 
do. 
Fort Riley. 
Cottonwood creek. 
do. 
do. 
f Near Fort Lea- 
| venworth. 
( Bryan’s fork of 
Little Blue 
river, K. T. 
VOL. XII.— 18 
