CAHABA COAL FIELD: BLOCTON BASIN. 115 
Thompson; it shows only two feet in thickness at the out- 
crop on the hill above the No. 2 slope in this basin. It 
may be larger in other parts of the basin, though the evi- 
dence elsewhere testifies to its gradually reducing in size 
towards the southwest end of the Cahaba Coal Field. In 
places through the field it is liable to be divided up into 
two or three benches, with slate intervening; in the Eureka 
basin it is solid. 
For relative position of the seams in this basin, see the 
Blocton Vertical Section, the General Vertical Section, and the 
Blocton and Montevallo Horizontal Section, on the accompany- 
ing map: 
The following two analyses of the coal of the Woodstock 
seam, were made by Porter & Going, Cincinnati, Ohio: 
Sample Sample 
No. 1. No. 4. 
Moistur'é.gc0 v3eace: ceustiestexace vkaees: ey eraaes 1.45 1.40 
Molatilés gos: once gheladay taaev agape eee 32.21 34.05 
Fixed :carboOm:,< ccceadace (ese ed Sai hes dane as 61.83 60.30 
Sul phar. +c a; gaeeed acd eee ee ented 6 es 1.10 114 
ABN josie cc nilast added maivea panes ears eae PER eo 83 41 3.11 
100.00 100 00 
The following two analyses of the coal of the Underwood 
seam were also made by Porter & Going, Cincinnati, Ohio: 
Sample Sample 
No. 2, No. 3. 
Moisture sss nase scidameaue ae ees see alviereaed ee 1.70 1.50 
Volatiles. occ csscersaaks succasverewesaeereee sa 82 21 30.95 
Fixed €atb0nsicc. oes deed o eee eek ee eae es 60.02 61.72 
Sulphuls stewscide 04 cosas antes as acemipntng las 82 1.13 
NSB sc cites otslele eee aw ah Ta eed Awesome mena need 5.25 4.70 
100.00 100.00 
The following analysis of the coke from the Underwood 
coal was made by Alfred Gaither, Chemist, Philadelphia, 
Pa.: 
Volatiles, « csnicscccapase adaas tease Ghebed we dv et ees seeeuu Has 4.508 
Bixed. Carbon: caucuses anansabe ad Ses ua aides phen teaes eae ads 87.607 
SOlpluts cen. deco yo ye set enworeee aMlgnemmaitedieane segues 745 
Ashe san wen wetness veesa daOaaes Gehan wenaneusiaateim eae 7.140 
100.000 
The following analysis of the coke from the Woodstock 
