Long Livers 1722: a curious history of such persons of both sexes who have liv'd several ages, and grown young again: with the rare secret of rejuvenescency of Arnoldus de Villa Nova, And a great many approv'd and invaluable Rules to prolong Life: AS Also, How to prepare the Universal Medicine. Most humbly dedicated to the Grand Master, Masters, Wardens and Brethren of the most Antient and most Honourable Fraternity of the Free-Masons of Great Britain and Ireland. By Eugenius Philalethes, F.R.S. Author of the Treatise of the Plague