PART X.
GAS METRE, OR SELF-ACTING GUAGE, WHICH MEASURES AND REGISTERS, IN THE ABSENCE OF THE OBSERVER, THE QUANTITY OF GAS PRODUCED IN A GIVEN TIME, FROM ANY GIVEN QUANTITY OF COAL, OR CONSUMED DURING A GIVEN PERIOD, BY ANY NUMBER OF BURNERS OR LAMPS 200
DESCRIPTION OF THE GAS METRE AT THE ROYAL MINT GAS WORKS 214
RULE FOR CALCULATING THE WEIGHT, WHICH A GAS METRE OF GIVEN DIMENSIONS, WILL RAISE, TO A GIVEN HEIGHT, IN A GIVEN TIME 220
GAS HOLDER VALVE 221
SIPHON, OR WATER RESERVOIR 221