72 Lake Mcixinkuckee, Physical and Biological Survey 



1900, -8° February 1 and 17, and 56° February 8; range 64°. 

 190.1, -14.5° February 6, and 37.5° February 17; range 52°. 



1902, -13° February 3, and 52° February 27; range 65°. 



1903, -6° February 19, and 49° February 10; range 55°. 



Temperatures at or below freezing were recorded as follows : 

 In February, 1899, at 6 a. m. on the 1st, 2d, 7th to 15th, both 

 inclusive ; 25th and 27th, the only days on which observations were 

 I'ecorded : Zero weather was recorded on the 1st, 2d, and 7th to 

 13th, both inclusive. In 1900, on the 1st, 2d, 3d, 5th, 6th, 9th, 

 10th, 11th, 13th to 20th, both inclusive, and 22d to 28th, both in- 

 clusive, at 6 a. m. ; on the 1st to 5th, both inclusive ; 9th, 13th to 

 19th, both inclusive, and 24th to 28th, both inclusive, at noon ; and 

 on the 1st, 2d, 5th, 6th, 8th, 9th, 10th, 13th to 19th, both inclusive; 

 22d and 24th to 28th, both inclusive, at 6 p. m. 



The temperature was therefore do^\^l to freezing- on 23 days 

 at 6 a. m., on 18 days at noon, and on 20 days at 6 p. m. Zero 

 weather was recorded on the 1st, 16th, 17th, 24th and 25th. 



In February, 1901, the temperature was down to freezing on 

 every day at 6 a. m. ; on the 1st to 17th, both inclusive, 19th to 24th, 

 both inclusive, and 26th to 28th, both inclusive, at noon ; and on 

 the 1st to 24th, both inclusive; 16th, and 18th to 28th, both in- 

 clusive, at 6 p. m. The temperatui-e was therefore at or below 

 freezing at 6 a. m. on every day of the month, at noon on every 

 day but the 18th and 25th, and at 6 p. m. on every day except the 

 15th and 17th. Zero weather was recorded on the 6th, 7th, and 

 21st. 



In February, 1902, freezing temperature was recorded at 6 

 a. m. on every day except the 27th and 28th, at noon on every day 

 except the 21st to the 28th, both inclusive, and at 6 p. m, on every 

 day but the 23rd to the 28th, both inclusive. In this month records 

 of zero or below at 6 a. m. were made on the 2d, 3d, 4th, 5th, 7th, 

 8th, 9th, 11th, 14th, 15th, 18th, 19th and 20th,— 13 days in all. 



In February, 1903, freezing temperatures were recorded at 6 

 a. m. on the 3d, 5th to 10th, both inclusive, and 13th to 26th, both 

 inclusive; at noon on the 4th, 5th, 8th and 13th to 22d, both in- 

 clusive ; at 6 p. m. on the 3d to 8th, both inclusive, and on the 28th. 

 The temperature was at freezing or below on 21 days at 6 a. m., 

 on 13 days at noon, and on 21 days at 6 p. m. Zero weather was 

 recorded on the 17th, 18th, and 19th. We have no record for 

 February, 1904, and only one for 1905, when on February 18, 22° 

 below zero was recorded, the coldest temperature that has been 

 noted during the period covered by these observations. In 1906, 

 only 3 observations were recorded for this month, namely, 50° 



