Limestone should be avoided, as it soon splits under heat.
It splits it into a fatty acid and glycerine, but seems to have no further action.
The splitter places a block on end between his knees, and with chisel and mallet splits it into as many plates as possible of the usual thickness for roofing purposes - namely, a quarter of an inch more or less according to the size and strength required.
It splits into two parts east of the Philippines, one division flowing northwards as the Kuro Siwo or Black Stream, the analogue of the Gulf Stream, to feed a drift circulation which follows the winds of the North Pacific, and finally forms the Californian Current flowing southwards along the American coast.
H If the flagellar border splits, the membrane doubtless divides also; but where the flagellum is a new formation the membrane will be too.