Miftellanea Curio fa, a 6 3 



: Lat. 



1 Sun in 



Sun in 

 1 S> 



Sun in 



O 



IO 



20 



20000 



19696 

 18794 



1834I 

 20290 

 21737 



T Q O A * 



18341 . 



15834 

 13166 



go 

 40 



17321 



15321 



22651 



23048 



10124 

 6944 



50 

 60 

 70 



80 

 90 



I2855 



I OOOO 

 684O 



3473 



OOOO 1 



22991 

 22773 



23543 

 24673 



25055 



3798 : 

 . 1075 

 000 

 000. 

 -000 



Thofe that defire more of the Nature of this 

 Problem, as to the Geometry thereof, would do 

 well to compare the XII L Prop. Cap. V. of the 

 Learned "Treadle, De Calculo Centri Gravitatts, 

 by the Reverend Dr. Wailis^ Pubiifhed Anno 

 1670. 



From this Rule there follow feveral Corollaries 

 worth Note : As L That the iEquino&ial Heat, 

 when the Sun comes Vertical, is as twice the 

 Square of Radius, which may be propofed as a 

 Standard to compare with, in all other Cafes. 

 II. That under the ^Equinoctial, the Heat is 

 as the Sine of the Sun's Declination. 10, That 

 in the Frigid Zones when the Sun lets not, the 

 Heat is as the Circumference of a Circle into the 

 Sine of the Altitude at 6. And confequenrly, 

 that in the fame Latitude thefe Aggregates of 

 Warmth, are as the Sines of the Sun's Declina- 

 tions; and in the fame Declination of Sol, they 



S 4 are 



