Before revision: Such institutions provided such things, as "board, lodging and medical attendance, at a moderate charge" to protect seamen them extortion, as well as "to promote their moral, intellectual, and professional improvement; and to afford them the opportunity of receiving religious instruction".
After revision: Such institutions provided such things, as "board, lodging and medical attendance, at a moderate charge" to protect seamen from extortion, as well as "to promote their moral, intellectual, and professional improvement; and to afford them the opportunity of receiving religious instruction".