1822.] Meteorological Register kept at St. Petersburgh. 13 
ArTICcLE III. 
An abstracted Statement of the Weather during the Twenty Years 
from 1772 to 1792, kept at the Imperial Academy of Sciences 
in St. Petersburgh; to which is added the Two Years 1818 and 
1819; both copied from the Russian Yearly Calendar. By 
Mr. Longmire. 
Account of the Weather at St. Petersburgh from the Year 1772 
to 1792, both included, in the Old Stile. 
Barometrical Observations. 
English inches. 
1. Greatest height during these 20 years oc- 
PEC CAL NOV: ort, PT TE: . bon ms 0 a5 0 widle,« 31°15 
Least height in 1784 ......... dis up lous ores 28°56 
SLE Salers aprttags tute om ana paca Me 
2. Mean of the greatest yearly height taken on 
ther 2B years... kisi wert! 4 dadsree oh «.. 30°84) 
Mean of the least height................ 28°813 
Differences). i414) sass nO ae AA 2028 
General mean height. .......... sea Poe 29:914 
In general, the barometer fluctuates the most ; and, therefore, 
is at the highest and lowest points in December; but the mean 
height was at the upper extreme in May, and at the lower in July. 
Thermometrical Observations. 
The account is given in the scales of Reaumur and De Lisle. 
I have reduced the numbers to Fahrenheit’s scale, and annexed 
them to the others. 
Iv adag of ie 
| & 4g EI 
=] o o 
oa A | & 
1. The greatest cold on the 4th of Feb. 1172, .1.....+++4+s+000¢ | 38° |208-0]—39,2 
The greatest heat on the 7th of July, 1788 ........-+-seees- 92 {1000} 262 
er AMeren CCH a Paan Ad soles ats o/e's\saSteishisicleleeo:c, beleve «sh[é 130 |108:0} 66% 
2, The mean of the greatest cold for the 20 years ......+-.++++ —23 |195°6|—24% 
The mean of the greatest heat.....--sssececccccecceccarsce 85 |106°6} 23,4 
Nie Gifference a delnpcisap.csercccocceccsresccececessiensiose: 108 | 89 48} 
