118 TRANSACTIONS OF THE [JAN. 20, 
Seearr il. G.. avis, HED, Joa ee ee 26.93 
Aina etd wee. oP Me Se ee 32.41 
One Of dfn i: Ob6 6 Bi) RE Sek Oe Be 3.96 
CaAleiam: OXIME. 4 £444 eR PE. CP ee i 24.68 
Mapnenium Oxid)?.!, f.c44 242824. eee 10.32 
Caleium: sulphate: v6.2 890 02 O2 se Pe 0.21 
Alkaliés and logs¢ (o2¢4 2264... i0 ee TE ee 1.49 
GEG! 5. 2! Scan Apedee tome pags cee a eae bss _ 100.00 
The calcium oxide is derived from calcium carbonate. which 
appears as stains and occasionally as crystalline plates along 
the cleavage. The color of the ash is light yellowish gray; 
phosphorus is only 0.006; and the specific gravity of the coal is 
1.410. 
The composition of an average sample of the anthracite em- 
bracing nut, stove and egg sizes, taken from the bins at 
Topeka, is (W. D. Church). 
Watets), sal aowsytar Ae Ble OE ae 0.16 
Volatile nratteri.i. ois eee Od ee ee 1.04 
Fixed (Carbon). 2.1.5. 0c. «2% aie Ae Oe 93.02 
BNE els Sova ter Cite Mie ieee Re, ite ee 5.78 
ADOtal.. oc 22.¢ 60 eis eS eee oR konteerte eae ee eee 100.00 
SUUUPRIUUE thn les ovina es 0: saa, yo ae Se dacde hu ee 0.117 
The ash consists of 
Bitten Cs sto. PPE Pa SE Ee ee ee 32.14 
A Taming 8S 2 OPES oS Te, CELE SS ee 36.58 
Oxide-of lr6aHs. 2 e049 ee 12.85 
Cate “Oxideu 4 Vis. ees Sk UP ML 8.19 
Magnesium oxide .«:.0.25.. 02.0625 2oue ee eee 5.11 
Caleiaim Sstlphates, si VAsy ces see ea 0.18 
Bodiamvextde fyb. '34-6..- 245 25. Si ee ae ee 1.38 
Potassium oxide... b.u00  o see ers hee beer 3.59 
MER cerca cts Shakur eae pe aeu ie Coe 100.00 
PHGOSPHOTUS.« ai./n-.00s es sas ae AG Ce een ee 0.00383 
The color of the ash is given as reddish ochre. The specific 
gravity varies from 1.537 to 1.540. 
These analyses show some curious variations in composition 
of the ash, there being a very notable increase in the proportions 
of silica, alumina, oxide ofiron as well as of alkalies, while there 
is a very striking decrease in calcium and magnesium com- 
pounds. The volatile matter has been removed, yet the ash re- 
mains practically the same. These variations are not easily 
