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 
seam of semi-opal. 
Sulphur springs of the Colorado. 
40 
Amorphous opaque mass, chiefly carbonate of lime- 
Between Mustang springs and Big springs of the Colo¬ 
rado. 
41 
Compact calcareous sandstone. The grains are in a firm 
Cedar bluffs, ledge between Mustang springs and Big 
investment of carbonate of lime. 
springs of the Colorado. 
42 
Compact and fine-grained red sandstone. 
Bluffs below the Big springs of the Colorado. (Horizon¬ 
tal strata.) 
43 
Mass of pebbles cemented by oxide of iron- 
Big springs of the Colorado. 
44 
Nodular concretion, sand and oxide of iron_ 
Near Big springs of the Colorado. 
45 
Flint stained with oxide of iron_-_ 
Vicinity of the Ojo del Cuerbo. (Crow springs.) 
46 
Sandstone charged with oxide of iron_ 
Llano Estacado, east of White Sand hill. 
47 
Sandstone--- 
Head waters of the Colorado, 25 miles from the Sulphur 
springs. 
48 
Gypsum and sandstone_ 
Red fork of the Colorado river. 
49 
White sandstone, (similar to 41—“Carboniferous.”)- 
Cross Timbers of the Trinity river. 
50 
Limestone, light-drab color, and compact- 
Head waters of the Clear fork of the Brazos. 
51 
Conglomerate, silicious_ 
Affluent of the Trinity. 
52 
Sandstone, compact, fine grained, and light-grey color, 
calcareous. 
High bluffs of the Brazos. 
53 
Sandstone, two specimens, grey and red__ 
Head waters of the Colorado, 20 miles from the Sulphur 
springs, being the lower strata of a bluff on-a ravine. 
54 
Flint nodule ----- 
Dividing ridge between the Colorado and Brazos. 
55 
Limestone.:... 
High bluffs, head waters of the Brazos; horizontal strata. 
56 
Sandstone, highly charged with iron, hard and heavy. 
Between head waters of the Colorado and the Brazos. 
57 
Conglomerate, charged with iron like 56. 
Same locality as 56. 
58 
Flint ... 
Clear fork of the Brazos. 
59 
Eed sandstone, fine grained, and compact.-.. 
Head waters of the Colorado. 
60 
Grey and reddish sandstone..... 
Do. 
61 
Grey sandstone, compact___ 
Between Clear fork and the Brazos. 
62 
Gypsum---- 
Head waters of the Brazos. 
63 
Sandstone_ 
North side of the Brazos. 
64 
Limestone of a blueish color, containing on one side peb¬ 
bles of red and white quartz. 
Head waters of the Brazos. 
65 
Sandstone and gypsum___ 
Head waters of the Brazos river. 
66 
Argillaceous sandstone_ 
Near Clear fork of the Brazos, in a ravine. 
67 
Limestone___ 
Tributary of the Brazos. 
68 
Red and grey sandstone, three specimens_ 
Bluffs on the head of the Brazos river. 
69 
Ferruginous sandstone, full of almond-shaped cavities... 
From the vicinity of Fort Washita. 
70 
Silicified wood_ 
Cross Timbers of the Upper Trinity. 
71 
Sulphur_ 
Bed of Delaware creek at the springs. 
72 
Porous friable rock_ 
Bed of Salt lake, 15 miles east of the Guadalupe motm* 
tains. 
73 
Trachytic rock...... 
Near Los Comudos. 
74 
Limestone and...... 
Sierra Alto. 
75 
Limestone and sandstone.... 
Head waters of the Colorado. 
76 
White limestone and sandstone__ 
25 miles east from Sulphur springs, March 23, 1854. 
77 
Sand_ 
Sand hills, west side of the Guadalupe mountains. 
78 
Galena_ 
Organ mountains. 
79 
Cerusite, carbonate of lead_ 
Do. 
II. FOSSILS. 
No. 
Name. 
Locality. 
80 
Mass of broken shells, probably Exogyra Texana _ 
Banks of the Red river near Preston. 
81 
Mass of shells, consisting of fragments of Gryphcea _ 
Llano Estacado, 20 miles east of the Sand hills. 
82 
Mass of fragments of Gryphcea ___ 
Elm fork of the Trinity, high ridge outcropping from 
the surface. 
83 
Gryphcea Pitcheri, four specimens... 
Big springs of the Colorado. 
84 
Exogyra Texana, three specimens_ 
Do. do. 
85 
Exogvra Texana, much worn_ 
No locality given. 
86 
Several specimens of a drab-colored limestone, contain¬ 
Big springs of the Colorado, from different parts of the 
ing Gryphcea like G. vomer. 
bluff. 
01 
Carboniferous limestone, two specimens, (boulder). 
Affluent of the Elm fork of the Trinity. 
