THE ANTARCTIC MANUAL. 
Tasue I.—Monrury Mean TEMPERATURES.* 
Months | ene abate, | shies Mee oh, | Miotmum. | Range. 
1899. |) Sei ba (pe fas » 
February 4 | Wr4ti oe zis Fe as a 
Mareh .. eet ae | sth | 311 25th — 2:5 | 83-6 
April .. F | 10°3 | 2nd 30-0 19th —10'0 | 40:0 
May .) = 46) 4th 23-2 13th —81:1 | 54:3 
June - =11'8 11th 14:1 3rd —36°0 | 50-1 
July | = 86 | 18th | 23-8 9th —39°9 | 63-7 
August . | —184 | 1th 18-9 4th —43°1 62:0 
September .. : | -11°9 | 7th 11:5 30th —36°1 47°6 
October © — 1:8 | th | 19°6 2nd —385°5 55°1 
November .. $178 | 2th | 45-7 | st | — 40 | 49-7 
December .. 31°8 | 25th 42-2 ith +20°4 21°8 
January ae | 880 | 23rd, 48-9 | (10th 22°5 | 264 
Mean temperature for the year = 7°°05 F. 
occurred on August 4, at 9 p.m., during perfectly calm and clear 
weather. Table III. shows the fall of temperature during the afternoon 
of that day, with the accompanying barometric pressure : 
Tae III. 
Time. Temperature. Temperature. Barometer (corr.). 
oF, ec inches. 
1 p.m. —36°0 —37°8 29° 292 
3, —40°0 —40°0 29° 312 
5 sy —41°5 —40°8 29°324 
a —42°0 —41-1 29°344 
9 —43°1 —41°7 29°355 
At these temperatures the mercury. froze in the ordinary-thermo- 
meters, and spirit cnes had to be used. The above -temperatures are 
means derived from three thermometers. At these low temperatures 
there was a slight diversity in the indications of the respective 
thermometers, even after applying the corrections as given upon the 
Kew certificates. The maximum temperature observed at Cape 
* Obtained by taking the means of maximnm and minimum daily temperatures. 
+ Based on twelve days’ observations, 16th tu 28th, 
