The Gagneau lamp, with the old chimney, burned 62.25 grammes per hour, and with the Bayle 63 grammes in the same length of time.

A gas generator supplying a gas motor burning Swansea anthracite and Noeux coke, medium quality, will consume 516 grammes of anthracite and 90 of coke to produce 2,370 liters of gas giving 1,487 heat units per cubic meter.

The unit of heat, called a calorie, or gramme-degree, is the amount of heat which is necessary to raise one gramme (15.43 grains) of water one degree centigrade (1.8 degrees Fahr.).

Each prisoner receives 42-1/2 grammes of cigarettes and two boxes of matches every week; two lbs.

On titrating 20 grammes of the contents of each beaker, No. 1 required 0.5 c.c. of silver solution.

FRANC, a silver coin 835/1000 fine, the monetary unity of France since 1799, weighs 5 grammes and equals about 9½ d. in English currency (£1 = 25.3 francs); has been adopted by Belgium and Switzerland, while under other names a similar coin is in use in Spain (peseta), Italy (lira), and Greece (drachma).