The compleat book of knowledge: treating of the wisdom of the antients and shewing the various and wonderful operations of the signs and planets, and other celestial constellations, on the bodies of men, women and children; and the mighty influences they have upon those that are born under them. Compiled by the learned Albubetes, Benesaphan, Erra Pater, and other of the antients. To which is added, the country man's kalendar; with his daily practice, and perpetual prognostication for weather, according to Albumazar, Ptolomy, and others. Together with a catalogue of all the market-towns, fairs, and roads in England and Wales. All those who peruse this book, must own, that it the knowledge gives of things unknown.

XV. Of the Evil or Perillous Days in every Month of the Year, according to Erra Pater, a Jewish Doctor in Astronomy and Physick.

THat Great Doctor, Erra Pater, who is so famous for his Prognostications, assures us, that there are certain Days in the Year, which it concerns all Persons to know, because they are so perillous and danger∣ous: For on these Days, as he saith, if a∣ny Man or Woman shall be let Blood, they shall die within twenty one Days following; or whoso falleth Sick on any of these Days,

they shall certainly die: And whoso begin∣neth a Journy on any of these Days, he shall be in danger of Death, before he return: Also he that Marrieth a Wife on any of these Days, they shall either be quickly parted, or else live together with much Sorrow and Discontent. And lastly, Whosoever on any of these Days, beginneth any great Business, it will never prosper, nor come to its desired Perfection. Now since these Days, accord∣ing to Erra Pater, are so unfortunate, it highly concerns every one both to know and take notice of them; which the Reader may do, I have here set them down in the following Order:

Ʋnfortunate Days in each Month.

In January are eight Days; that is to say, the 1st, 2d, 4th, 5th, 10th, 15th, 17th, and 19th.

In February are three Days; that is, the 8th, 17th, and 19th.

In March are three Days; that is, the 15th, 16th, and 21th.

In April are two Days; the 15th, and the 21th.

In May are three Days; that is, the 15th, 17th, and 20th.

In June are two Days, the 4th, and the 7th.

In July are two Days, the 15th and 20th.

In August are two Days, the 19th and the 20th.

In September are two Days, the 6th and 7th.

In October is one Day, the 6th.

In November are two Days, the 5th and the 19th.

In December are three Days, the 6th, the 7th, and the 11th: And others say, the 15th and the 16th.

But besides these, there are also the Ca∣nicular, or Dog-days, which are Days of great Danger and Peril; and they begin the 19th day of July, and end the 27th day of A••gust; during which time, it is very dan∣gerous to fall Sick, to take Physick, or to be let Blood; but if Necessity call for it, it is best to be done before the midst of the Day.