( 3 g 8 ) 
of Things into Ridicule. Mr. Leibnitz , in Tome Let- 
ters which he wrote into England , intimated' that 
he had a Profped of a perpetual Motion , founded cn> 
the Notion of a Vital Principle , or active Tower 
in Matter. But from the Experiments now mention- 
ed, ’tis evident that if the Force of Bodies in Motion 
could be exalted even to the infinifth Tower of their 
Velocity ; yet fince, to anfwer the Phoenomena of Na- 
ture with Regard to Action and Re-affion, the fame 
Force mud neceifarily be allowed to all quiefcent Bo- 
dies likewife , it could be of No Effect. 
III. Agronomical ObferVations made at Vera Cruz, 
by Mr. Joieph Harris. TpVifcd and communica- 
ted by Edm. Halley, L. L. D. Aftron. Reg, 
! & R. S. S. 
T HE Latitude of this Place I found (by feveral 
didant Obfervations made by a Quadrant of four 
Feet Radius) to be 19° it! N. 
On March 11, 172,7. O. S. there happen’d here a 
confiderable Eclipfe of the Sun, the greated Obfcura- 
tion being about 10 f Digits ^ and having that Morning 
carefully adjuded the Pendulum Clock, and fixed a 
Telefcope to the Index of the forefaid Quadrant, I ob* 
ferved it to begin in or about the $ . E. by S. Part of the 
Sun’s Disk at 49 f Minutes after Noon apparent Time ; 
the Altitude of the Sun’s Center then ,was 67® 53'. 
We could not determine exa&Jy the Middle of this 
Eclipfe, but as near as we could judge, it happen’d about 
z h 3o m P. M, 
The 
