THE LOWER COAL MEASURES. 235 
The bearing in is done at the clay parting, and the benches are 
blasted separately. The average composition of the entire seam is as 
follows : 
HH VAN SA ALOLC Oa Re rsenanne nes see cee oc iaecne po cioce oa tote ahige nc ouwtde vonscedelngeceacecess Lord 
JMET ELEDERS) -cooocdasb cEBGco Cac CA GEN CaaA COCCHI ROROCE BORD REET E CSUR Ce on eee te anne 2.85 
OVA Gil pr AES reece voce eee ole Cae aa een oie See oaicioucio's agdclca bdsiabtwadsle beauens 39.00 
EXC CECAT OO Mee ras cen St seme aa eine Seen Sis os Sele Toe us Saleied Scntec oleae stoewousdens 46.69 
ANEIOY. cocm00 80 Su0345 006 8d0C OD ASS EE CAC OED IC BIC CE AE HEE ICSE RAG ANE aS nse na ne 11.46 
HG Gall Pieter tae ers oto ars eee ores ole oslo Se save we Seay aeaee ea olelz na emo secetd 100 
SLO OUYDN? AcpaSacecctendesdlmoadsoce hao snoScnecauche ar nee ce on cn ec ee me eCE ence 3.14 
The specific gravity of the coal is 1.33. The benches were not 
examined separately, but there is little reason to doubt that the facts 
reported for Greentown would in the main be applicable here. The 
Fox Run mine duplicates this description. The coal at these mines is 
a little harder than at Greentown, yielding three cars of lump to one of 
nut and one of slack. 
The four mines now described constitute the only shipping banks 
in the State in the Brookville or Putnam Hill Limestone coal. The 
seam is at its best in the portions of Stark county, already referred to. 
The limits of the field which it occupies have not been traced with 
precision, but it is known to extend, though no doubt with occasional 
interruptions, from Greentown on the north to the valley of Big Sandy 
Creek. The proved breadth of the seam in this large volume is much 
less, but workable deposits are found at least four miles apart in an east 
and west line. 
There are three other shipping mines along the line of the Valley 
Railway, between Canton and the Mineral Point district. 
The first of them is a new bank just opened for the general market, 
though long worked in the small way for the neighborhood, and as a 
small element in the supply of Canton. The mine is situated a mile 
and a half northwest of North Industry. It is to be known as the 
Chestnut Grove mine of the Richards Coal Company of Canton. 
The mine is opened in the Middle Kittanning seam, No. 6 of New- 
berry, in its northwestern extension for this region. It lies higher in 
the hills than any other mine in the county, though still holding good 
cover. There are 225-250 acres of the coal connected in one way or 
another with the mine. Royalty is 14 cents per ton of clean coal. 
