Observationes astrologicæ : or an astrologicall discourse of the effects of that notable conjunction of Saturn and Mars that happened October 11 1658. and other configurations concomitant. From whence is rationally predicted the quality and time of those principal transactions that are probably to ensue in England and severall other parts of Europe, (almost) untill the year 1661. To which is prefixed a breif instiution [sic] for the better understanding the following discouse, [sic] or any other of the like nature; and also added, a most ingenious discourse of the true systeme of the world. /