The intensity of the stream of energy passing per second through a square centimetre when a given pure tone is sounded is more definite and can be measured.
Heavier howitzers had been sent for from Japan, and on the 1st of October the first batteries of 28 centimetre (11 in.) howitzers came into action.
Working with two different specimens, he found that the hysteresis loss in ergs per cubic centimetre (W) was fairly represented by o 00125B 1 6 and o o0101B 1 ' 6 respectively, the maximum induction ranging from about 300 to 3000.