√ -375⁄4096 is ¼ - ¼√ -15 the half Sum of which Roots is = ¼ = y .
But if that Extraction can not be perform'd, or may seem too difficult, the thing may be solv'd by the help of a Table of Natural Sines, after the following manner;
To the Radius 1 let a = 61⁄64 = 0,95112 the Sine of some Arch which is therefore 72° 23', whose Fifth part (because n is equal to 5) is 14° 28' the Sine of it is 0.24981 = ¼ nearly.
The same is the Method of proceeding in Equations of higher Dimensions.
A Discourse concerning the Action of the Sun and Moon on Animal Bodies; and the Influence which This may have in many Diseases. By Richard Mead , M. D. F. R. S.
PART I.
THAT some Diseases are properly the Effects of the Influence of the Heavenly Bodies, and that others do vary their Periods and Symptoms according to the different Positions of one or other of those Luminous Globes, is a very ancient and certain Observation. Upon this score Hippocrates[18] advises his Son Thessalus to the study of Geometry and Numbers, because the Knowledge of the Stars is of very great use in Physick[19]. And the earliest Histories of Epidemic Distempers, particularly do all turn upon the alterations made in our Bodies by the Heavens.
But when in later Times Medicine came to be accommodated to the Reasonings of Philosophers; no body being able to account for the