On Apr. 23rd I was practising pendulum-observations (by coincidence); and about this time repeatedly practised transits with a small instrument lent by Mr Sheepshanks (with whom my acquaintance must have begun no long time before) which was erected under a tent in the Fellows' Walks.

On the contrary, they swing just as any other pendulums swing, at a fixed rate, determined by their length.

" "There appears to be a sort of pendulum-uneasiness in mankind," said Mrs. Bloomfield, "that keeps opinion always vibrating around the centre of truth, for I think it the rarest thing in the world to find man or woman who has not a disposition, as soon as an error is abandoned, to fly off into its opposite extreme.