EF. Loomis—Contributions to Meteorology. 253 
Taste IV.— Thermometer —36° Cent. at Yeniseisk, Central Asia. 
Date. | Ther. | Bar. | ebove Date. | Ther. | Bar. A Dove 1 Date. Ther. | Bar. 
| i} 
1876. | i | Nl makenrce i I} 1879. °| a 
Jan. 7) —39°1|772°5) + 8-7)|Dec. 27] —37°8|774-4) + 8°8)|Nov. 28) —37°3/76i-1 
8| —38°0) 73°8| +10°0,| 1878. 29| —40°6) 72:4 
31) —36-1) 62-7) — 1-1jjJan. 2) —37-0) 72°8) + 9-0|)_ 1880. 
Feb. 1| —45:9| 65:1] + 3:9 7| —39-2| 80:8] +17-0||\Jan. 16) —38-8| 78°5 
1) —38°2| 63-9] + 2-7 8| —38°2| 83-1] +19-3]| 17, —41:5| 80-0 
13] —38-2| 57-1) — 41 9} —39°5] 80-6) +168) 19 —36:7| 82:6 
14; —40-3| 51-6 — 9°6 10| —38-7| 79:9} +16 -1]| 26| —36°1| 72-0 
Nov. 30) —39-0] 71:0) + 9:8 25) —37-8] 71-8] + 8-0||Feb. 16] —36-1| 75-2 
Dec. 1) —43°1) 73-2| + 7-6 26} —37-7| 76-8] +13-0]| V7) 37-0) 1390 
13} —36-9| 75-0] + 9:4 27 —37-1| 74:3] +10°5) 18} —38-2| 68-9 
V4) 39-0) F321) 42 Ted 28) —37°6] 72:1) + 8:3|/|Dec. 10) —37-6} 70:2 
29| —37-7| 72-9] + 7°3||Feb. 1] —37-0] 67°9| + 6:7 Ti) ==37-9|072°8 
1877. | Noy. 5| —37-4] 69:2] + 8-0]| 12) —38-0| 76-9 
Jan. 9| —39-7| 81:5) +17:7||Dec. 5| —36-6| 56:5} — 9:1]| 1881. | 
10| —46-1| 81-8] +18°0 6| —41-0] 59°9| — 5-7|/Feb. 2| — 39-2) 7677 
18] —36:1| 62-4) — 1:4 1| —36-6| 68-1] + 2:5 12] —40-0| 77-2 
20| —36-4| 62°7, — 1:1 8| —38-0| 65-6] 0-0 21) — 37-3]. 63:1 
21| —46°6| 64-6] + 0°8 9| —44°9| 69-9] + 4-3]| 22| —36:8| 72:6 
22) —48°8| 74:9] +11°1 10) —48-0| 74-4| + 8:8)| 23) —39-6| 68:8 
28| —42°4| 60-3) — 3°5 11) —40-3) 77-6] +12-0) Mar. 1] —37-1] 84:0 
29| —45°5| 67°5| + 3-7 13} —37-6| 77-9] +12°3||Nov. 29} —37-0| 68:3 
30) —41-7| 68-3) + 4:5 21) —42°9) 78:7] +13°1 30, —38-0| 70-0 
31| —3671| 74°1| +10°3 22) —42:9] 82°2| +16°6|\Dec. 1] —38-0] 66:3 
Feb. 4| —36'1| 64:9) + 317 23) —40:2| 82:7] +17-2 2| —36°6| 65-7 
5) —41-7| 63°9| + 2°7|| 1879. | 23) —36°2| 71:1 
6| —38°1| 66-1) + 49||Jan. 17) —41-0| 63-1) — 0-7|| 1882. 
7| —3'7-8| 71-4) +10:2 18] —50-0| 66-9} + 3-1||Dec. 1) —41-8} 58-3 
8| —36°8| 72-6] +11-4 19} —54:1] 73:5} + 9-7] 3} —42-0] 64°6 
9} —40-6| 75-0) +. 13-8 20) —46-6] 74-1] +10-3 6) —38:4| 73:4 
Dec. 11) —38°5| 51-6) —14-0 241 —38:0| 72-0] + 8:2/| ih) Aer | Ne 
12| —46-4| 61-9) — 3-7 25| —42-7| 73-8] +10-0)| 8} —49-0| 76:3 
13) —50°7) 65:1! — 0-5 26| —43-7) 74:4] +10°6|| 9, —48:6] 75-5 
14| —50:5| 72:8) +. 7-2 27| —43-9| 66-3] + 2°5|| 17| —39-6| 84-4 
15] —46°5) 81-1) +15°5||Feb. 15| —38-4| 68:5] + 7:31 24] —42-1| 75°3 
16] —44°5| 87-9| +22°3]| 16| —45-4) 74-9) +13°7| 25) —44-4| 77-9 
23| —37°6| 77-0] + 11-4 17| —40:5] 69-7] + 8°5| 26| —40°8| 70°6 
JG) —3 1-0 1671) 11) 231 37-71 69-21 + 8-0) 
Above 
mean. 
— 01 
folded 
AST 
+16°2 
+19°8 
+ 8°2 
+14:0 
+12:5 
TT 
a 
i 
orb OO OF Te AT 
SwWAWGADRHDOW 
++t+4++4++ | 
= 
The mean pressure at Yeniseisk (not reduced to sea level) 
is as follows: January 763°8™™; February 761:2™,; March 
759:3"™; November 761:2™ ; December 765°6™™. From these 
values I have deduced the numbers given in column 4th of the 
table, showing for each date in millimeters how much the 
barometer was above or below its mean height. The average 
of the numbers in this column is +7°8™™ (=0°31 inch); that 
is when the thermometer at Yeniseisk sinks as low as —86° C. 
the barometer is generally 0°31 inch above its mean height. In 
only one case (Dec. 16, 1877) did the barometer rise as high as 
31:0 inches. We find then that extremely low temperatures 
are generally attended by a pressure somewhat above the mean, 
but seldom by an extremely high pressure. Moreover we find 
