The coal bed numbered 5 we correlate with the Mulky bed, developed on Mulky creek, between Aullville and Concordia, near the south line of the sheet. The sandstone numbered 8 we class as the top member of the Lower Coal Measures, which is, hence, about 15 feet above the railway track. The coal numbered 10 is exposed farther east by the coal smut in the shales above referred to, while the coal numbered 13 we consider the equivalent of the coal numbered 3 in Section III.

Less than half a mile west of the last section a churn drillhole was recently put down by Mr. H. S. Van Anglen, to a depth of about 200.

A few hundred feet west of the ravine in which this drillhole is situated, at the mouth of a small branch, the coal bed numbered 10, of Section V, is again exposed below the railway level; it measures only a few inches in thickness, however; it is immediately underlain by a stratum of limestone two or three feet thick, and is overlain by gray shale.

In the next ravine to the west, perhaps 500 feet distant, several openings have been made in thin coal beds which occur there not far above the river level. These we correlate with those numbered 10 and 13 in Section V. Farther up this same gully, less than half a mile to the south, is a massive body of sandstone, exposed at the Davis quarry, underlain by shale. Here the following section was measured:

From the data of the sections previously described, the top of the Lower Coal Measures is less than 20 feet above the railway here, or more than 40 feet below the top of this section. According to this, the whole of Section VI should be included in the Middle Coal Measures near its base. Such strata are not recognized elsewhere as basal members of that division, and further, they are not represented in the closely adjoining Section V.

The continuity of the lower beds of Section V beneath Section VI precludes the idea of a fault here, and we are, hence, forced to the conclusion, either that a rapid change has taken place here in the lower members of the Middle Coal Measures, or that the members of the above section belong to the class of chapnel deposits later to be described.

Nearly a quarter of a mile farther west is a long railway cut, in which the following section was measured:

The coal numbered 7 we correlate with No. 10 of Section V. Nearly half a mile farther west, beyond where the range line between townships 21 W. and 25 W. comes down to the river, the following section was measured, at what is known as the locality of the old Crawford coal mine:

The coal numbered 7 and 8 we correlate with No. 13 of Section V. The sandstone numbered 2 is probably the equivalent of No. 8 of Section V, much augmented in thickness. The absence of this sandstone in Section VII may be explained, in part, that it is there more attenuated, and, in part, that it is included in the concealed interval numbered 5. It is possible, however, that this sandstone is part of a channel deposit such as was suggested in the case of the sandstone of Section VI.* The coal here was dug from the river bed over 40 years ago, and hence the locality is known as the old Crawford mine.

The sandstone crops out continuously beyond this for a distance of about a quarter of a mile. After this no further outcrops of Lower Coal Measure rocks are observed until Edwards station is reached. Here a shaft was sunk by the Riverside Coal Company, about a year ago, to a depth of 93 feet in Lower Coal Measure rocks. A complete, reliable record could not be obtained of this, and the following information is compiled from memoranda of the drillers and shaft men :

SECTION IX. (No. 6 of Section Sheet.)

RECORD OF SHAFT AT EDWARDS STATION.

Top of shaft is about 20 feet above the railway.

Interval to top of Lower Coal Measures is about 10 feet. 1. Superficial material..

2. Shale

Feet. Inches.

15

15

* Edwin Harrison, in his notes in the Survey office, refers to this sandstone as of Lower Coal Measure age and correlates it with the sandstone found at Berlin, near the mouth of Tabo creek, later to be described. Some black shale which he found at the base of this sandstone he attributes to a "slide" from shale overlying the latter.

10

2

1

3

4

6

92

9

The top of this shaft we place near the top of the Lower Coal Measures here, but we cannot attempt to correlate either of the coal seams with those of preceding sections, and in fact, doubt whether an actual connection exists. We do not recog

nize the bed at the bottom of the shaft as the Waverly bed, but are of the opinion that the latter belongs to a lower horizon. About a quarter of a mile west of Edwards station, the following section was exposed in the railway cut:

SECTION X.

OUTCROP WEST OF EDWARDS STATION.

Top of section is about 18 feet abore railway level.

Interval to top of Lower Coal Measures about 10 feet.

Near this same point, Mr. C. J. Norwood measured the fol

lowing section :†

SECTION XI. (Section 29 of Report 1872.)

NORWOOD SECTION WEST OF EDWARDS STATION.

Feet. Inches.

1. Long slope, (the Lexington coal should occur here 73 feet above the river bottom)

55

5. Limestone, ashy blue, pyritiferous, shelly on top, Fusulina cylindrica, etc 6. Shale, bituminous.

16

18

10.

Limestone, light yellowish drab, one bed contains Ch. mesoloba... 11. Shale, calcareous (passing into a limestone), containing concretions 12. Slope to bottom.

Total thickness..

The top of the Lower Coal Measures should be not far above the lowest member of this section. East of this, to Tabo creek and to the limits of the sheet, only a few scattered

↑ Report Mo. Geol. Survey, 1872, Part II, p. 49.

exposures of limestone and shale were observed at a low enough level to be included in the Lower Coal Measures. The Lexington coal bed comes in in the bluffs east of Edwards station at an altitude of about 800 feet A. T. or about 100 feet above the railway, and declines thence gently westward, the upper limit of the underlying Lower Coal Measures becoming depressed correspondingly until it sinks beneath the level of the river plain.

Sections along Salt creek and adjacent to Tabo creek.-Along Salt creek and in the small area of Lower Coal Measure rocks on the fork of the Tabo creek, east of Davis creek, no exposures of that formation occur, inasmuch as the upper line is in both localities very little above the level of the alluvial plain of the respective streams.

South of Davis creek, in the southeastern corner of section 4, township 50 N., 20 W., is a churn-drilled well on the Catron place, over 300 feet deep. No detailed record could be obtained of this drilling, but the following notes were given by the driller:

Sections along Davis creek.-North of Davis creek, in the eastern portion of the sheet, the Lower Coal Measure rocks are exposed, but no continuous sections can be measured at any one point. The records of a few wells obtained here give the most comprehensive results. The sandstone which constitutes the superior layer of the formation is exposed at a num