110 CONTRIBUTIONS TO DEVONIAN PALEONTOLOGY. [BULL.24J 
It is to be noted that in the one continuous section of Gulf Brook 
the Chemung fauna has a range of 1,200 feet. If the correlation of 
the Towanda Narrows section with its upper part be correct, the range 
is extended 300 feet higher. The estimate of the length of this range, 
made on the basis of the section along the 76° 30' meridian, was 1,200 
feet; but at that time (1881) the upper limit of the Chemung was pufl 
where the red beds first appear in force. It is now known that the Che- 
mung fauna does not everywhere stop at that horizon. It is, however, 
quite probable that the Leroy section covers the greater part of the 
total range of the Chemung fauna for that region, which by measure- 
ment is 1,700 feet of strata. 
THE TIOGA SECTION. 
By E. M. Kindle. 
Tioga River cuts squarely across the axis of the Crooked Creek 
synclinal mountain, just south of the village of Tioga. North of the 
town, the southward-dipping Chemung beds are well exposed on the 
east bank of the river. The following section is based upon the out- 
crops between the wagon bridge, two-thirds of a mile north of the 
town, and the Pennsylvania Railroad station, and on those in and near 
the highway between Tioga and the summit of the mountain, 1 miles 
east of Tioga: 
Section 1460 A, at Tioga, Pa. 
Feet. 
56. White coarse sandstone with numerous small angular quartz pebbles.. 20± 
055. Black carbonaceous shale 1± 
54. Coal ? (a few inches reported) ? 
53. Covered ( place of Mauch Chunk ) 45± 
52. Mottled arenaceous gray limestone with lumps of shale and fish teeth. . 10 
51 . Covered 10+ 
50. Irregular-bedded coarse buff sandstone, some layers with numerous 
carbonized plants 10 
49. Covered 10 
48. Red shale 10 
47. Light-green thin -bedded micaceous sandstone 45 
46. Greenish-gray and red sandstone and shales mostly covered. (Oswayo 
and Cattaraugus) 960± 
45. Red and gray beds mostly concealed. (Cattaraugus-Chemung tran- 
sition) 100 
44. Gray thin-bedded sandstone 5 
43. Covered 15 
42. Drab-colored thin-bedded sandstone (partly concealed) 16 
41 . Covered 4 
40. Thin-bedded drab sandstone 12 
39. Thin-bedded drab sandstone 16 
38. Covered 32 
"Nos. 47 to 55 of the section are exposed in a shaft, drift, and quarry near the residence of A. E 
Rawson. 
