Spinning Tops / The "Operatives' Lecture" of the British Association Meeting at Leeds, 6th September, 1890

by John Perry

SPINNING TOPS.

THE "OPERATIVES' LECTURE"
OF THE BRITISH ASSOCIATION MEETING AT LEEDS,
6th SEPTEMBER, 1890.

BY

PROFESSOR JOHN PERRY,
M.E., D.Sc, LL.D., F.R.S.