294 ANALYSES OF ROCKS AND MINERALS, 1880-1908. 
PROCHLORITE. 
From the Aqueduct tunnel, Washington, District of Columbia. Analysis by E. A. 
Schneider. Described by Clarke and Schneider in Bull. 78. 
SIO: sseee cokeek ae usec aod Haat, 25:40" (} 20 at 06". 2c: nn emeeaennemes ve aeeeerestiies 
fi a see Ssh a Nay) oT aeale Stas arcilciaia 22.80 | HzO above 105°..-.............. 
2:86: | Feeverieasea se anesnd- tip aiied voaceeeeisices 
17.77 
25 
19.09 
SERPENTINE.¢ 
A. From Newburyport, Massachusetts. Analysis by IF. W. Clarke. 
B. Same locality as A. Analysis by E. A. Schneider. Discussion by Clarke and 
Schneider in Bull. 78. 
©. From Moriah, New York. Analysis by Charles Catlett. Described by Merrill, 
Proc. U. 8. Nat. Mus., vol. 12, p. 596. 
D. From the aqueduct shaft, New York City. Analysis by Charles Catlett. See 
Merrill, loc. cit., p. 598. 
E. From Montville, New Jersey, light yellowish green. 
F. From Montville, darker green. Analyses E, If by Charles Catlett. See Mer- 
rill, Proc. U.S. Nat. Mus., vol. 11, p. 105. 
G. From Montville, massive. 
H. From Montville, chrysotile. Analyses G, H by E. A. Schneider. Discussion 
by Clarke and Schneider in Bull. 78. 
Mg! : 
Tij0: at 105°... 02.10 scsseswes lines. 1.20 1.36 "96 | 2104 
a0 above 105° . 13.86 \ 13:65 13.25 \ 14.12 \ 14.24) 13°79 | 13,60 
(Per ee RE ee eee ee Se ae ee ee eet | ee eee a a eee ee eee ed PETE || actin ay alates Pus areraeae Mabe tele Stak RN 
I. From Easton, Pennsylvania. Resembles a vermiculite. Analysis by E, A. 
Schneider. See Clarke and Schneider, Bull. 90. 
J. Grayish-green serpentine from Corundum Hill, North Carolina. 
K. Picrolite from Buck Creek, Clay County, North Carolina. Analyses R and 8 
by E. A. Schneider. See Clarke and Schneider, Bull. 78. 
L. From the river Poldnewaja, district of Syssert, Urals, Siberia. Analysis by E. 
A. Schneider. See Clarke and Schneider, Bull. 113. 
M. From Greenville, Plumas County, California. Analysis by W. H. Melville. 
Described by Diller in Bull. 150. 
a Other analyses of serpentine are given in the section on igneous and crystalline rocks. See pp. 18, 19, 
146, 161, 162, 169, 172. i : 
