Cost per Cost pertor 1,000 cubic of coal

ft. sold. I carbonized

Coal
Less Residuals

Coke
Lime
Tar
Liquor

Net for coal
Purifying
Salaries of engineers, &c.
Wages at works
Repair and maintenance of works
Salaries of surveyors, inspectors,

&c.
Repair and maintenance of

mains and sewers Repairing, renewing, and re

fixing meters..
Public lamps, lighting, and

repairing
Rents
Rates and taxes
Directors' allowances
Salaries of secretary, account-

ant, &c.
Collectors' salaries
Stationery and printing
General establishment charges
Auditors' fees
Law
Bad debts

..