pg 019: A Partial report on the geology of western Texas, consisting of a general geological report and a journal of geological observations along the routes traveled by the expedition between Indianola, Texas and the valley of the Mimbres, New Mexico, during the years 1855 and 1856; with an appendix giving a detailed report on the geology of Grayson County Publication 1308351

pg 019: A Partial report on the geology of western Texas, consisting of a general geological report and a journal of geological observations along the routes traveled by the expedition between Indianola, Texas and the valley of the Mimbres, New Mexico, during the years 1855 and 1856; with an appendix giving a detailed report on the geology of Grayson County Publication 1308351.

A Partial report on the geology of western Texas, consisting of a general geological report and a journal of geological observations along the routes traveled by the expedition between Indianola, Texas and the valley of the Mimbres, New Mexico, during the years 1855 and 1856; with an appendix giving a detailed report on the geology of Grayson County

CHAPTER II.
SECONDARY PERIOD.

CRETACEOUS SYSTEM.

1. UPPER CRETACEOUS OR CALCAREOUS GROUP.

LITHOLOGICAL CHARACTER.

RANGE, EXTENT, AND THICKNESS.

AGRICULTURAL CHARACTER.

SPRINGS.

CHAPTER III.

2. LOWER CRETACEOUS OR MARLY CLAY GROUP.

LITHOLOGICAL CHARACTER.

EXTENT AND THICKNESS.

CHAPTER IV.
PALEOZOIC PERIOD.

CARBONIFEROUS SYSTEM.

1. COAL MEASURES.

CHAPTER V.

2. MOUNTAIN LIMESTONE,OR LOWER CARBONIFEROUS.

EXTENT AND THICKNESS.

LOCAL DIFFERENCES.

PHYSICAL CHARACTER.

ECONOMICAL GEOLOGY.

LOWER SILURIAN SYSTEM.

FROM INDIANOLA TO SAN ANTONIO DE BEXAR.

SAN ANTONIO DE BEXAR.

CHAPTER II.

FROM SAN ANTONIO DE BEXAR TO FORT CLARK.

CHAPTER III.

FROM FORT CLARK TO THE LOWER EMIGRANT CROSSING OF THE RIO PECOS.

CHAPTER IV.

FROM THE LOWER EMIGRANT CROSSING OF THE RIO PECOS TO THE MOUTH OF DELAWARE CREEK.

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opening in the strata, and after flowing about a hundred yards through a basin-shaped depression in the prairie, again disappears beneath massive strata of limestone. Near the point of emergence it is about fifty feet wide, ten feet deep, and flows with a rapid current, but contracts somewhat in width a little lower down. It abounds in fish of the same species as are usually found in the streams of Texas.

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