Taste pr biting, the Analyses a several varicties of Bituminous Coal, both into their provimate 
and their ultimate constituents, with the calculated 
and the experimental determi nation of their evaporative ers. 
ae Soa PRACTICAL EVAPORATIVE] & © 
PROXIMATE ANALYSIS. By sicblesbin: The; com: $32 POWER. ® § ty 
: ULTIMATE ANaLy- | Ststible mater in100.° a [Pounds of water 2 © 558 
: 2 ale parts is found to b eee $ | from 212° toone’ £3 § 158 
: Composition of the raw coal in 100 | 3 : constituted of — {E 8 8] of combustible & cpa a. 
z parts. Be . oe Pe matter. ees 2.8 
; g : 2 ee ea aha 383 
& |s 3 Reais eis | |e fees) = (F25 |efe | eee 
a . we fm « . ape — 
rumen | 2 (Z| | BIg |g lsels, | eels |e|s (ecec] g (582 leseel ies 
8 a 5 | €s = S mS |ED | 83 | Ss ¢ & |e, Seopef Sy £3 8% S| Sen 
@ |}53/s] 821 3 | & |Be/s5/ 22) 23] & £28 eel ve gens e222] - 02 
= ct a2 {| O° oa 5 = a 4 2 Sl? -S13o08 
ee) * )e° | E ] e besje*jegje'] 8 || & Gest) e* fesse seve £2: 
; 3 : “Eee TS be | €°4 EE we § fees) = [Sebes.e2leze 
2 FS s o 6 rc} . aeee = Se Sgeehazes rs 
I. Summit Portage ; , s 
kg , Cambria eh e. 1500) 18-195) 64-245] 15-360 |3-535] 7-26 20-62 3:23} 91-955 5-867) 2.178) 11592} 10-238! 1-312 11-550} —-028 
_ County, Penn, : ; i= 
i a ys 1:3006 0-914)2:282) 29-274] 62-050] 5-480/1-966] 4-57)14-82 pie bike: Wh 0-641) 11-731} 10 -” 1:269 | 11-460]-+4-271 $ 
3. Newcastle, Eng. i 9567 \1- ‘461 28:312! 68-377) 1-850 2-415 6: 46,19 ¢ 56) 321]84-157 5626 10:218)10545] 9-178 1-720 | 10-898] ~ +353] = 
4. Clover Hill, Va. 1-2887 1-277/0-514| 28-409) 65-425) 4-375 2-26e! 6- 05,17-68] 2:58}83-393 4-958 11-649) 10°445] 8-588) 1:949 | 10-537|~-082| o 
5. Scotch, i Axe 1 are 365 35586| 60-342 2-707 /1-696| 7-64 22-60) 3:75 82: . a oe ‘441}10-393] 8-868, 1:338 | 10-206) 4+--187 : 
6. Caseyvi e, Ken- f 
ak & Cannel- 1:3920 1-150 30-669) 44 493 23°687 |1-450} 4-21) 8-96} 1-92]76-335 6-663 17-002} 9-565] 7-734) 1-823 9-557 -++-008 rf 
ton, Indiana : O°: . 
Averages, + ee el & le ee ee ee ee. RI ad {10-700 9-133, 1-5685| 10-701 t 
7. Osage River, Mo. | 1-:2000/1-670|0-482| 41-348] 51-160! 5-340 /1-987 6:94/19-95 3 6 81 B55 6 163, 11: 977] 10 256 oak 
8. Pure bitumen, 1/1558} -000 72-438] 24-799] 2-761 |0-342} 8- 16 22°60) 5-73)77 679 8: 023) 14:298] 9.464 S 
pede —The evaporative trials were performed by burning about two tons of Feack kind of coal, under a boiler capable of teotersiing! 15 cubie feet of od 
Water er hour, ‘al 
The ultimate analysis of coal No. 1, was effected by burning in contact with scale oxide of copper,— 2 Abatysis by scale oxide, as in No. 1.—3. Analysis 3 
by same material as above. The heat expended on gases is calculated from the mean result of several other coals of similar constitution—7. No evaporative “ 
trials of Osage coal or of bitumen have been made.—It appears that on an average, the first six varieties of coal expended in evaporating water from the boiler “= 
85°35; and on the products of their combustion 14°65 per cent. of their whole heating power. _ Both the sum and the number of diffe erences fon the practical > 
and the calculated evaporative powers, affected by the positive sign, are seen in the last column 
affected d by thea 
