Mr. Jjeonard Horner has just died in theeightieth year of his age. Mr. Horner, who from an early age wee addicted to scientific pursuits, was in 1827 appointed garden of the London Institution, and did much9 one of the principalr~-r~rr- ----â -, rc - -Tâ, and has done muclitowards the physical improvement oj factor; the prevention of accidents. On tnese siibjeWritten many Works. The deceased gdh Brother of the celebrated Francis Horner.1M.