To The Ingenious Lovers of Art

Being the Considerations of the Famous
GUIDO BONATUS
Faithfully rendered into English.
A Work most useful and necessary for all Students,
and recommended as such to the Sons of Art.

---

By William, Student in Astrology.

---

Printed for B. Harris at Stationers
Arms in Sweethings Rents near the Royal-Exchange, 1676.

LICENSED
April 29, 1675
Robert L’Estrange.

We have formerly some thoughts of revising our Introduction to Astrology, now out of print, and to have enriched it from another edition with the choicest Aphorisms, both from the writings of the Ancients and our own many years Experience, but the Laboriousness of that Work, considering our age and many Infirmities of body, with the Discouragements we have already me with from some ungrateful persons, caused us to lay aside (at least for the present) those intentions.

Yet that we might not be wholly wanting to promote anything that might tend to the advancement of Art and gratification of its painful students, and knowing how necessary the ensuing Considerations of Guido Bonatus and Aphorisms adjoined, are to be known and regarded, which many of our ingenious countrymen could not do, for they have hitherto remained in the Latin tongue with the rest of the works of these Authors in Large volumes, difficult to be got at and too chargeable for man to buy, we therefore recommend them to a Friend to be translated by themselves, which he has judiciously performed in plain significant language, so that we judge the work may deserve the title Anima Astrologiae which we have given it, comprehending the Marrow and Substance of Astrology, and much excellent matter necessary to be observed by all Honest Students that practice Art to discover Truth and not to Vapour with.

We doubt not but the Legitimate Sons and well-wishers of Urania will find considerable advantages from hence, directing them to a certainty in giving judgments upon all occasions, and they will for this publication have cause to thank their old friend.

Walton-upon-Thames, 2 August, 1675.

William Lilly.