Note 14 — Chapter III · LIFE AFTER HER BROTHER’S MARRIAGE.

This comet, since known as Encke’s, in consequence of that great astronomer having determined its periodicity in 1819 and predicted its triennial return, was discovered, independently, four several times before its identity was recognized, Miss Herschel’s observation of it in 1795 being the second in order of time. Additional interest has since attached to it, in consequence of its gradually diminishing period and the views hence suggested on the economy of the solar system.