Balls were first made of grass or leaves held together by strings, and later of pieces of animal skin sewn together and stuffed with feathers or hay.

For here retir'd the ſinking billows ſleep, / And ſmiling calmneſs ſilver'd o'er the deep.

An illuminating article in a recent issue of the Eastern Region's Civil Engineering News points out that where coal is worked over a reasonably large area, it is not only the whole of the strata above the workings, but also an area beyond which is liable to subside at varying rates after the coal has been removed.

The accident was a good lesson to me.