Last week a remarkable feat of surgery was porforined ujpon Gen. David Barrett, of Whitehall, N. Y., aged 79 yoars. Ten yeara ago he was inj urod by ïalling upon a pile of board?, aud a splinter of wood was extracted from his sido. At periods since he bas suffered severe paine in his kidney, which was aaoribod to ovorwork. Recently he was taken with moro violent pniiis ín the orgun nained, and an investigation showed tlie presence of n foreign substance. An inoision diaclosed the head of a teupenny nail, and ñirther use of Ihe scalpel showcd the Burgeon that the nail was imbedded in the old man's kidney, and thftt ïuoitiücation liad sot in. The only chanco of saving the patient's life was the exoision of the organ, whioh was sucoesafuHy dono, and, notwithstanding his alvaneed age, Gon. Barrett haa made rapid and surc progress toward recovery.