395 



BArometnc OlservationSi 



Leigh ton, May 24, IS:.'!. 



Dear Sin, — I am sorrv that it is not in my power this month, 

 to send the barometrical observations at tliis place, owing to a 

 mistake in the day, inadvertently conclnding the ^ih being the 

 proper day, instead of the 1 4th ; and not discovering my error 

 till too late to snpply the defect. 



I have the pleasure to send you the observations made by Col. 

 Beaufov at Bushy- Heath, as below : 



1 have also the pleasure to send you the observations made by 

 Mr. Cornfield, at Northampton, on the same day, by an instru- 

 ment suspended in his lecture room, which has been ascertained 

 to be about 39 feet above the surface of the canal above the bottom 

 lock or entrance into the river Nene. The barometer of Mr. 

 Cornfield I estimate to be about 63 feet lower than mine. 



1821. 

 8'' 3" 

 3 



9 

 10 

 11 

 12 



1 



I also subjoin the calculated results of the preceding six months 



from the observations made at Leighton and Bushy, rejecting 



fractions. 



Bushy above Lfighton. 



Byobserv. in Nov. 1820 = 



Dec. . . = 



Jan. 1821 = 



Feb. .. = 



March . . = 



April . . = 



