42 CATALOGUE OF THE GEOLOGICAL COLLECTION. 
No. Name. Locality. 
38 | White calcareous sandstone From the bluffs between the Big springs and Sulphur 
springs of the Colorado. 
39 | Silicious and calcareous mass, white, and containing a | Sulphur springs of the Colorado. 
seam of semi-opal. : N 
40 | Amorphous opaque mass, chiefly carbonate of lime. ----- Between Mustang springs and Big springs of the Colo- 
41 | Compact calcareous sandstone. The grains are in a firm gem bluffs, ledge between Mustang springs and Big 
investment of AE A of lime. rings of the Colorado. 
42 | Co nd fine-grained red sandstone Bluffs ae the Big springs of the Colorado. (Horizon- 
tal s 
43 | Mass of nece cemented by oxide of iron Big ME sa of the Colorado. 
44 odular tion "e nuda xide of iron Near Big springs of the Color: 
45 Flint stained with o vs Meam aia s Vicinity of the T: na e {Crow springs.) 
46 | Sa = one ies with ake ger iron o Estacado, east of Whit d hi 
47 dston Head =o ig of ‘the Ouais, 25 miles from the Sulphur 
48 | Gypsum and sandstone Red fork « of pea Colorado river. 
49 | White sandstone, (similar to 41—‘‘ Carboniferous.’’) ...- ss Timbers e Trinity 
50 Limestone, nerd ^ ap and vomnpact.o.iius dc. 22 c..] Head waters s the s Clear fork ‘of the Brazos. 
51 Aff 
52 Sandstone, “compact, fine grained, and light-grey color, | High bluffs of. the Brazos 
53 ns imn specimens, grey and red vens waters of the Col orado, 20 miles from the Sulphur 
rings, being the lower strata o luff on a ravin 
54 I nod een Dividing ridge — the Colorado and Brazos. 
55 I s ffs, head rs ofthe Brazos; —Ó "ip 
56 dune. highly charged with iron, NE and heavy. Betw head vates sti the Colorado and t 
57 | Co nglomerate , charged with iron like cea localit 
58 | Flin iut Clear fork of the Brazo 
59 | Red sandstone, fine grained, and compact Head waters of the Colorado. 
60 Grey and reddish sandstone. Do. 
61 | Gre — compac Between Pans fork and the Brazos. 
62 Guus Head waters of the Brazos. 
63 | Sandsto North iem of the Brazos. 
64 esos of a blueish color, containing on one side peb- | Head waters of the Brazos. 
bles of red and white te quartz. 
65 gypsum Head wa f the Brasos ri riv 
66 | A sandstone Near Clear f fork of the antes d a ravine. 
67 | Limestone .... ibutary of the Brazos 
68 | Red and grey sandstone, three specimen Blufis on the head of the Brazos river. 
69 | Ferruginous sandstone, fall of iiie Miped cavities. ..| From the (—€— of Fort Washita. 
70 ciem wood Cross Upper Trinity. 
71 | Sul : Bed of piei creek at the 
72 foe friable rock Bed of Salt lake, 15 aie. east of the Guadalupe moun- 
tains. 
73 Trachytic no Near Los Cornudos. 
74 Limestone Sierra Al 
75 [Twain ana sandstone Head. altes of the Colorado. 
76 | White limestone and sandst 25 miles east fro nj. Batgbar springs, Mara 23, 1854. 
77 | Sand Sand hills, west side of the Guadalupe mountains. 
78 | Galena Organ mountains. 
79 | Cerusite, carbonate of lead 
Ii. FOSSILS. 
No. Name. Locality. 
80 | Mass of broken etie , probabl y Exogyra Terana ........ Banks of the Red river near Presto 
81 | Mass of shells, co ing of fragments of Gryphea .....- Llano Estacado, 20 miles east of the Sand hills. 
82 | Mass of dune. go ies of the ‘Trinity, high ridge uteri from 
ace. 
83 | Gryphea Pitcheri, four specimens Big springs of the Colorado. 
84 | Exogyra raat three — oe T se 
85 | Exogyra Terana, much w o locality give 
86 Mr specimens « à ven iqon d limestone, contain- Bie Morin of the Colorado, from different parts of the 
e vomer. uff. 
91 two specimens, (boulder) ...... Affluent of the Elm fork of the Trinity. 
