[ *17 ] 
12. Let our Traveller now remove Weftward on 
the fame Tropic, to a Meridian 977 Degrees diftant 
from the firft j and there he will have very great Dif- 
ferences of the Riling, Setting, and Meridian Alti- 
tude of the Sun 5 which will now rife to him the 
firft time, in the South Point of his Horizon, at iz 
o’ Clock 5 at 1 o' Clock he will be abo^ half a De« 
gree above the Horizon, and will fet at zr o’ Clock s 
So this fhort artificial Day in Venus (which is fome- 
what longer than two natural Days on our Earth) 
will have no Forenoon at all. The Sun, after com 
tinning almoft 14 of Venus’s Hours below the Hori- 
zon, fuppofing each diurnal Rotation to be divided 
into 24 Hours, will rife a little before 4 o'Clock next 
Morning, near the North-Eaft; and, going on 130 
Degrees, he will then crofs the Meridian with zz 
Degrees of North Declination, and 37 of Altitude : 
Then, going on without fetting, he again crolfes the 
Meridian at 57 Degrees of Declination, and 72 of 
Altitude,* and advancing forward thence 17! Hours* 
or 262I Degrees, he comes to his greateft Declina- 
tion, 77 Degrees to the North of the Eaft : From 
thence, completing his Revolution to the Meridian, 
he now crofies it in 71! Degrees of Declination, 
being only 3! Degrees from the Zenith : At the 
next Revolution he crolfes the Meridian with 38! 
Degrees Declination, and 5 3I of Altitude : At the 
next, which is the fourth Revolution, he croffes the 
Meridian with i~ Degree of Declination, and 1 6\ De- 
grees of Altitude ; and then goes on 6 $ Degrees, and 
fets near the Weft South- Weft. 
13. Suppofe now that our Traveller removes ftill 
further Weft ward, on the fame Tropic, to a Meri- 
S z dian 
