1821.] Col. Beaufoy on a Clock with a Wooden Pendulum 203 



Article VI. 



Astronomical and Meteorological Observations, 

 By Col. Beaufoy, FRS. 



- Bushel/ Heath, near Stanmore. 



Latitude 51° 37' 44'3" North. Longitude West in time 1' 20-93". 



Astronomical Observations f Feb. 6, 1821. 



Occultation of 8k by the moon. . 5 E^JJIe^g^Jn" ^1 07 ' Of)'?" ( ^^^^" ^'""^ ^* Bushey. 



These observations were made under very favourable circum- 

 stances, and the hght of the star at the instant of immersion was 

 as bright as when it was several minutes distant from the moon's 

 limb. 



B.ain, between noon the 1st of January and noon the 1st of 

 February, 2*115 inches. Evaporation, during the same period, 

 0-680 inch. Mean heat of January, 37°. Thermometer, lowest, 

 Jan. 4th, = 21°. Highest, Jan. 18th, = 49i°. 



Article VIL 



On the Going of a Clock with a Wooden Pendulum. 

 By Col. Beaufoy, FRS. 



(To the Editor of the Annals of Philosophy.) 



DEAR SIR, Bushey Heath, Stanmore, Feb. 7, 1821. 



In the Annals of Philosophy for February, 1820, was pub- 

 lished the going of a clock with a wooden pendulum, and also a 

 description of its construction ; but as it may be more satisfac- 

 tory to have the account of the rate for a longer period than 

 12 months, I have the pleasure to send a table of the clock's 

 going, during a second year, and the result corroborates the 

 favourable impression I then entertained of its accuracy. 

 I remain, dear Sir, your obliged servant, 



Mark Beaufoy. 



