222 ANALYSES OF ROCKS AND MINERALS, 1880-1908. 
VIRGINIA AND NORTH CAROLINA. 
A. Residual clay from decay of Trenton limestone, Lexington, Virginia. Described 
by Russell in Bull. 52. Analysis by R. B. Riggs, record No. 373. See also analysis 
of the limestone. 
B. Residual clay from limestone, Staunton, Virginia. 
C. Portion of B soluble in weak hydrochloric acid. 
D. Insoluble portion of B. Analyses B, C,and D by George Steiger, record No. 1630. 
See also analysis of limestone. 
E. Decomposed dolerite, near Wadesboro, North Carolina. Described by Russell 
in Bull. 52. Analysis by T. M. Chatard, record No. 327. 
F. Residual clay from decay of chloritic schist, Cary, 8 miles west of Raleigh, 
North Carolina. Analysis by R. B. Riggs, record No. 364. Described by Russell in 
Bull. 52. 
A B C D. E r 
SiQgué2seneveesrseeceeeaceuns shee aieremedeeeexe sete 43.07 | 55.90 3.09 
AlOyscmassas vedsccke 25.07 | 19.92 3.96 
Fe.03 15.16 7.30 6.25 
MOO 2. iesers sed chee isneereetcng aca waa deemeaeene see eee REE 39 -30 
MgO - 03 1.18 43 
CaO. - 63 50 30 
INGO ls. Srseew segtedetenmteGeu es Sa Sabor baosme sees Mahe 1.20 = 23 20 
in) ar siecee ee os sent eer acetals ne misteieneaace aeeetiees aadeal 2. 50 4.79 28 
H20 at 110°... 7A eee 
H20 above 110° 6. 52 2.10 
Ti02. 20 04 
P2035. 10 04 
CrOssasiess seyereiorsaseithees see eeen an winys dona ema lees aegrl|ina ce dente] y ee ce ne: 
NO wk foes Cacnotob ised weak Sat onedeeedemsbem: axial ieeeres none |.......- 
CO aici wiriateie sap tems Sane 32 cana aeeceuN eg ah oyoeel aeees ed 38 338 
SOUTH CAROLINA AND GEORGIA. 
A. Clay from Charleston, South Carolina. Received from E. C. Eckel. Analysis 
by W. F. Hillebrand, record No. 2187. 
B, C, D. Clays from near Augusta, Georgia. Partial analyses by G. Steiger, record 
No. 1395. 
A. B. Cc. D. 
60.24 | 61.36 60.70 
i 26.72 |\ 29.04 \ 29.24 
.88} | .76 - 68 
present | present | present 
undet. | undet. | undet. 
FLORIDA. 
A. Hammock clay, Melborne Creek. Collected by N.S.Shaler. Partial analy- 
sis by L. G. Eakins, record No. 881. 
B. Clay, Tampa. 
C. Clay, Lakeland. 
