The economy of the eyes. --Part II. Of telescopes; : being the result of thirty years' experiments with fifty-one telescopes, of from one to nine inches in diameter, / in the possession of William Kitchiner, M.D. author of The cook's oracle; The housekeeper's ledger; The art of invigorating and prolonging life; The pleasure of making a will; Observations on singing, &c.; and editor of The loyal, national, and sea songs of England. To which are added, an abstract of the practical parts of Sir Wm. Herschel's writings on telescopes and double stars, &c.; some observations thereon, and original letters from eminent opticians.

The economy of the eyes. --Part II. Of telescopes; : being the result of thirty years' experiments with fifty-one telescopes, of from one to nine inches in diameter, / in the possession of William Kitchiner, M.D. author of The cook's oracle; The housekeeper's ledger; The art of invigorating and prolonging life; The pleasure of making a will; Observations on singing, &c.; and editor of The loyal, national, and sea songs of England. To which are added, an abstract of the practical parts of Sir Wm. Herschel's writings on telescopes and double stars, &c.; some observations thereon, and original letters from eminent opticians. Credit: Wellcome Collection. Public Domain Mark