TIIK NONMKTALLIC MINKRALS. 487 



color than its associiitcs. Tho sunio is also true of No. 51)785 (45° 

 Baunu'-O.SOOO siK'ciHc gravity) and No. 51)743 (47^^ Baume = 0.7909 

 specific gravity). On the other hand. Specimens Nos. 59506 (48° 

 Baume = 0.78()i) specific gravity) and 59591 (48i° Baunie = 0.7843 

 specific gravity) are da river than their associates, while the color of 

 Specimen No. 59584, with the very low gravity of 50^'' Banme = 0.7755 

 specific gravity, is as dark as any member of the series. 



(1) 22° Baume=0.9210 specific gravity, dark greenish. Colorado. (59741.) 



(2) 23^ Baume=0.9120 specific gravity, black. From the Trenton limestone. 

 J. W. Mitchell well, Plum Lick Creek, near Middletown, Bourbon County, Ken- 

 tucky. (59594.) 



(3) 27° Baume=0.8917 specific gravity, black. From the millstone grit (Carbon- 

 iferous). Lem Beck well, near Volcano, Wood County, West Virginia. (59553. ) 



(4) 2.S.V° Baume=0.8833 specific gravity, black. From the nullstone grit (Car- 

 boniferous), near Volcano, Wood County, West Virginia. (59555.) 



(5) 29° Baume=0.8805 specific gravity, black. Brockin well, .Tohnson County, 

 Kentucky. (59597.) 



(6) 30° Bauni^=0.8750 specific gravity, black. From the millstone grit (Carbon- 

 iferous) , near Volcano, Wood County, West Virginia. (59557. ) 



(7) 31^° Baum6=0.8668 specific gravity, dark greenish. Broward well, Johnson 

 County, Kentucky. (59598. ) 



(8) 32J° Baum^=0.8614 specific gravity, dark greenish red. Greensburgh, West- 

 moreland County, Pennsylvania. (59736. ) 



(9) 33° Baume=0.8588 specific gravity, black. From the Trenton limestone. 

 Taskin well, near North Baltimore, AVood County, Ohio. (59566.) 



(10) 34° Baume=0.8536 specific gravity, black. Oil in sand; here 23 feet in thick- 

 ness; depth of well 551 feet; drilled, 1877; torpedoed; yielded 3 barrels of oil on first 

 day of flow. Lot 4823, Howe, Forest County, Pennsylvania. (59805.) 



(11) 35° Baume =0.8484 specific gravity, black. From the first sandstone of the 

 Great Conglomerate (Upper Carboniferous). Well No. 6, West Virginia Oil and Oil 

 Land Company, White Oak district, Ritchie County, West Virginia. (59857.) 



(12) 36° Baum^=0.8433 specific gravity, dark greenish. From the firstsandstone 

 of the Great Conglomerate (Upper C'arboniferous). Oil in sand. Well No. 7, West 

 Virginia Oil and Oil Land Company, White Oak district, Ritchie County, West Vir- 

 ginia. (59858. ) 



(1.3) 37° Baume =0.8383 specific gravity, black. Oil in limestone, here 50 feet in 

 thickness; depth of well 1,321 feet; drilled 1885; torpedoed; yielded 50 barrels of 

 oil on first day of flow. Brick Yard well, Findlay, Hani-ock County, Ohio. (59807. ) 



(14) 38° Baume=0.83.33 specific gravity, dark greenish. From the first sandstone 

 of the Great Conglomerate (Upper Carboniferous). Oil in sand. West Virginia Oil 

 and Oil Land Company, White Oak district, Ritchie County, West Virginia. (59860.) 



(15) 39° Baume=0.8284 specific gravity, dark greenish red. From Clarion County 

 sand; depth of well 860 feet; drilled 1883; torpedoed; yielded 2 barrels of oil on first 

 day of pumping. Cumming's well No. 1, Gumming' s farm, Tionesta, Forest County. 

 Pennsylvania. (59816.) 



(16) 40° Baume =0.8235 specific gravity, dark greenisii. Bradford County, Penn- 

 sylvania. (59734.) 



(17) 41° Baume=0.8187 specific gravity, dark greenish. Parker ('ounty, Pennsyl- 

 vania. (59733.) 



(18) 42° Baume=0.8139 specific gravity, dark greenish. From the third sandstone 

 of tlie Petroleum Measures (Venango). Black Gas well, Pleasantville, Venango 

 County, Pennsylvania. (59580.) 



