Chronometria or, the measure of time in directions. According to a new, natural, and accurate institution. Containing tables of the equation of arch's of direction, thereto corresponding. Whereby with much facility, directions in all nativities are made to keep time with accidents, within the limits of an astronomical error. Manifestly evidencing and proving, the excellent and undeniable verity of astrology, and rendring that caelestial science, as conspicuous, and demonstrable, as any other part of the mathematicks whatsoever. As also, divers necessary, and exquisite rules, and precepts of art, together with the use and explanation of the tables / practically illustrated in the geniture of Mr. Henry Coley. [With preface by Coley] By John Kendal.
- Kendal, John
- Date:
- 1684
Licence: Public Domain Mark
Credit: Chronometria or, the measure of time in directions. According to a new, natural, and accurate institution. Containing tables of the equation of arch's of direction, thereto corresponding. Whereby with much facility, directions in all nativities are made to keep time with accidents, within the limits of an astronomical error. Manifestly evidencing and proving, the excellent and undeniable verity of astrology, and rendring that caelestial science, as conspicuous, and demonstrable, as any other part of the mathematicks whatsoever. As also, divers necessary, and exquisite rules, and precepts of art, together with the use and explanation of the tables / practically illustrated in the geniture of Mr. Henry Coley. [With preface by Coley] By John Kendal. Source: Wellcome Collection.
![sl ll cri MR Si Pri capone sete ge ae a US ee [ 27 J And find the place of ©, Fuly 12, in $% 29° 25’ very near the place of my Promittor, which I note down as inthe Margin, then 1 Subtract the Arch of Direction fromthe Pro- = mittor in Longitude, and the Remain- der is S,.0. 24. with which I again enter the Ephemerides, and find © as near that Point as I can, which againit Fune 12, is% o. ¢1. which] Subtract “= from the Number before found, andad.1 26 the refidue is 28° 34/3 then Ireckon 28°36 how many days the © was pafling from : thofe 2 Points &, o. 51. and & 29. 25. which I find to be 30. which I write under the refidue-laft found, naming them degrees; the leaft of thefe two Numbers I Subtract from the greateft, and find their difference to be 1° 26’, which is the true - quation for 30 years; becaufe there were jut 30 days; which Aquation is to be added to the Arch of Direction, (according to the Rule given) becaufe the difference of @s Motion was Subtracted from the Number of days, and gives the time of the Direction at 30 years and 2’. Now. if you enter the Tables with 29 25 O 51 28 34 20 O 1G 2 and 30 years onthe fide, at the common Angle of meeting, you fhall find 1° 26’ by in{pection onely, which is the Aquation as before; and cafting your Eye up towards the top of the SES EEE a ss . r](https://iiif.wellcomecollection.org/image/b30335668_0047.jp2/full/800%2C/0/default.jpg)


