CoLLEC;'nuNS IN KCO.NO.MIC GKOLOCiY AM) MKTALLUKGY. 23M 



(:«()) 18 I?;itim<S--0.7ri<)O8pt«ci»ic gfiivity, hlink. W .lil. njl C"<>iii|>niiy. TaHkill, Vo- 

 naiij^o County, l'<iiiisylvaiiii». (riOr)(i(). ) 



(:U ) >"<i ' Huiiiiu' (>.7"^l3s|tf(iticgr:ivity, dark fjrciMiiHii. l-'roiii tin- tliinl saiulHtonn 

 nf the PetrohMiiu NK'uaiiros ( Voniinj;o). Copley Fit-M, Ashley, Cl.irioii ('<»mity, Pfiiii- 

 Hylvauia. (.">1>."1H.) 



(IW) 4x4 Haiim*^ --0.7S;{J spi'citic ;;ravity, dark iiiiilx-r. Oil iiiNand, iierv Kift-ft in 

 tliickncss; dcptli of well l,(t'J."> tVct : drilled ItiTH; torpi-docd ; yitddcd 20 barrcU of 

 oil on lirHt <lay of tiovv. Well No. I, Lot No. fxi, Meud, Warren County, Pouusylvania. 

 (5"»780.) 



(3;J) 49 BaunitS — 0.7t21 specilic j^ravity, light {jrecuisli red. oil in Hand; depth 

 of well l,'2r)4 feet. Tiona Oil Conii»any, Warren County, Pennsylvania. (51I514.) 



(;?4) fiO- l^aunif (1.7777 Hpeciti<' j^ravity, ii^'ht j^reeni.sh red. Oil in sand, here .'lO 

 feet in tliiekiies.s. Cameron Well, .*>inith Pool, Wasliin^^ton CoMrity, PenuNylvania. 

 (.^It.-.X'.i.) 



(:{.'>) odi Hanm6 - 0.77.')r» Bpecilic j;ruvity, hlack. Haskell Well, Wijjglesworth 

 Tract, Venango County, Pennsylvania. (59581.) 



(:J6) 5W Haniue' = 0. 77154 specilie gravity, light greeni.sh yellow. Oil in sand 

 here 50 feet in thickness. Nichola.s Well, Vaneeville, Wa.Hhington County, Pennsyl- 

 vania. (.')9(i00. ) 



(37) 54 Bauuic _ 0.700S specific gravity, dark amber. Oil in sand; depth of 

 well 2,113 feet; drilled 1885; torpedoed; yieldi^l 15 barrels of oil ou first daj' of 

 llow. Cantz Well No. 1, Little W.i.shington, Wasiiington County, Pounsylvania. 

 (59777.) 



The following series of twelve speciiueus illustrates the principle va- 

 riations in color. The series may be divided into two portion.^, begin- 

 ning with a thoroughly black specimen and following through increas- 

 ing aujounts of green and red to a light greenish yellow in the lirst por- 

 tion, and in the second beginning with a dark red and following through 

 to a light straw, in which the greenish element of the color <loes not 

 a]>pear. 



(1) Hlaek. Hear Creek, Hurkesville, (^umlierlatid County, Kentucky. (,'>9s:5\».) 



(2) Hlack, tinged with green. Mecca, TruuiUull County, Ohio. (597.57.) 



(3) Dark greenish. Anchor Well No. 3, Glade, Warren County, Pennsylvania. 

 (.597f.l.) 



(4) Dark greenish red. Dale Urofhers' Well No. 1, Batteu Farm, near Rockland, Ve- 

 nango County, Pennsylvania. (597)57.) 



(5) Dark greenish red. Kane. Armstrong County, Pennsylvania. (59752.) 



(»)) Light greenish red. Cordon Well, Washington, Washington County, Pennsyl- 

 vania. (.59.52(5.) 



(7) Greenish yellow. I.eedecker Well, Huthr County, IN'nusylvauia. (.59750.) 



(8) Dark red. New lirinker Well. Plea.sant Valley, Wustmorelaod County, Penn. 

 sy 1 vau i a. ( 59.520. ) 



(9) Light red. Gait/ Well, Washington, Washington County, Pennsylvania. 

 (59527.) 



(10) Amber. Hes-s, Sackett vV Kiehner Well N'o. I. Kei«l.sburgh, Clarion County, 

 Pennsylvania. ( .59.5ML ) 



(11) Yellow. Kiggs (ias Well, .MoundNville, Marshall County, West Virginia. 

 (.59579.) 



(12) Light straw. Farm of .1. Somerville. near Hrady's Mend. Armstrong County, 

 Pennsylvania. (.59494. ) 



The following series show.s iIm- n<cu! rcncr in dilirrcni grojogical for- 

 nnitions arranged in a generally descending order. There is a certain 



