144 
INDEX. 
S. 
Page. 
Salt sand, correlation of 25, 49 
depth to 70-87 
occurrence and description of 50 
persistency of 11 
Saltsburg sandstone, correlation of 21, 49, 50 
' ' Sands," oil and gas, meaning of 22 
Sandstone, occurrence and description of . 128-129 
views of 128 
Second sand, correlation of 49 
Sewickley coal, analyses of 104 
correlation of 49 
occurrence and description of 103-104 
section of, figure showing 102 
Shale, occurrence and description of 130 
Shannon, triangulation station, location of. 138 
"Shells," meaning of 21 
Shepler, triangulation station, location of. 137-138 
Sixth sand, correlation of 49, 58 
Smith (Moses) diamond-drill hole, coal 
from, analysis of 97 
record of 16 
Smith Hun, limestone on, view of 120 
Somerset Township, wells in, records of 76-77 
South Franklin Township, wells in, records 
of 76-77 
South Strabane Township, wells in, records 
of 78-84 
Southwest Pennsylvania Pipe Lines, stor- 
age tanks of 47 
Spirit-level data, description of 138-139 
Springs, occurrence of 133 
Squaw sand, correlation of 49 
occurrence and description of 29,52 
Stevenson, J. .1., on coal 102,104,112,114,115 
on limesl our 120, 126 
on structure 38,40 
sections by 12-14, 17 
St ra t igraphy of quadrangle 11-36 
Structure, description of 36-42 
map showing 38 
Structure contours, explanation of 36-38 
Sub-Blairsville beds. See Catskill beds. 
Sulphur in coal, occurrence of 98 
Taylorstown, coal near, analysis of 115 
Teeples (I.) bank, coal from, analysis of 103 
Tenmile coal, development of 13 
occurrence a nd description of 115 
Thayer well, production of 46 
Third sand, correlation of 49 
Thirty-foot sand, correlation of 49 
depth to 70-87 
occurrence and description of 29, 52 
wells to 47 
Thompson (George well No. 1 (309), data on 59 
Thompson (J. L.) well No. 1, water in 134 
well No. 3 (46), record of 31 
section of, figure showing 22 
well No. 4, (47), record of. 28 
well No. 5 (48), record of 22,24,26 
section of, figure showing 22 
Thompson's (T.) bank, coal of, analysis of. 97 
Topographic data, details of 134-139 
Topography, description of 
Triangulation stations, location of. 
location of, figure showing 
Page. 
. 9-10 
134-138 
. 134 
U. 
Ulery (W. H.) bore hole, coal from, analy- 
sis of 97 
Union Stone and B rick Company, plant of. . 130 
Union Township, wells in, records of 84-85 
Union triangulation station, location of 136 
Uniontown coal, occurrence and description 
of 104 
Upper Freeport coal, correlation of 49 
depth to 70-87,116-117 
occurrence and description of 116-117 
water in 134 
Upper Productive Measures, occurrence of. . 15 
Upper Washington limestone, persistence 
of 11 
Valleys, importance of. 
Verner sand, gas from. 
w. 
YVa rren sands, correlation of 49 
Washington, coal in 116 
limestones at and near, sections of. 125, 126, 127 
sections in and near 14, 17 
water supply of 131-132 
Washington anticline, location and descrip- 
tion of 41 
Washington coal, analyses of 115 
occurrence and description of 113-115 
section of 114 
figures showing 102 
Washington County, development of oil and 
gas in 44-47 
Washington County Eureka Oil Company, 
development by 44-45 
Washington Daily Reporter, information 
from 44, 46 
Washington formation, occurrence and de- 
scription of 11,14-15 
oil and gas sands in 49 
sections of 14 
Washington limestones, occurrence and de- 
scription of 122 
outcrop of, view of 120 
sections of 122-123, 125, 126, 127 
Washington oil and gas field, development 
in 45-47 
location and description of 43-44 
production of 60 
structure in 63-64 
view in 44 
Water-bearing horizons, positions of 133-134 
Waterfall, view of 120 
Water resources, occurrence and description 
of 130-134 
Waynesburg coal, analyses of 112 
depth to 70-87, 106-107 
occurrence and description of 105-112 
quality of 111-112 
relations of Pittsburg coal and 105-106 
