[ 6 9 i ] 
The Barometer’s Mean Altitude (above 29 Inches) 
in 100 Parts of an Inch, 
In the Years 
The 
Mean 
Altitudes 
17 3 3 
1734 
1735 
1736 
1737 
1738 
1739 
collate- 
:ally. 
January 
.68 
.80 
•47 
.26 
.86 
70 
•45 
.58 
February 
•55 
.60 
.63 
.22 
.58 
•61 
.60 
•55 
March 
•43 
•52 
.36 
•44 
•45 
.46 
48 
•51 
April 
.65 
.69 
•49 
.70 
• 67 
•53 
•34 
.52 
May 
.70 
•54 
.60 
.58 
•7° 
72 
.60 
.60 
June 
.67 
.65 
.56 
.76 
•73 
• 50 
•5*5 
• 64 
July 
.67 
• 63 
.50 
.67 
•59 
.72 
• 67 
• 65 
Auguft 
.56 
•57 
.72 
•63 
• 55 
.60 
.6 1 
.63 
September 
.62 
.56 
.69 
•71 
.46 
.65 
•49 
•5<S 
October 
•72 
•47 
.69 
•33 
.60 
.52 
.71 
•57 
N.ovemb. 
•75 
•74 
•45 
.64 
.68 
.67 
• 32 
,61 
‘ Decemb • 
• 53 
.22 
•59 
•53 
.70 
.58 
• 65 
•54 
The Mean Aid- ") 
tudes in the fe- V, 
•veral Years, ( 
•63 
.58 
u 
•54 
•63 
•59 
•54 | 
The 
