Lake Maxinkuckee, Physical and Biological Survey 159 



that for the air being 44.6. In 1900, the variation was from 

 32.9 to 59.8 at 6 a.m., from 39.6 to 63.8 at noon, and from 

 39.3 to 60.5 at 6 p.m. The lowest daily average was 38.7 on 

 the 30th, the highest was 62.6 on the 3d, and the average for 

 the month was 47.6, that of the air being 40.7. In 1904, the 

 variation was from 37.5 to 51.5 at 6 a.m., from 38.5 to 53.9 

 at noon, and from 38 to 53 at 6 p. m. The lowest daily average 

 was 38.5 on the 27th, the highest was 53 on the 4th, and the 

 average for the month was 45.4, that of the air being 40.4. 



In 1906, the variation was from 35.5 to 53.5 at 6 a.m., from 

 37 to 53.2 at noon, and from 37.2 to 50 at 6 p. m. The lowest 

 daily average was 36.2 on the 20th, the highest was 48.8 on 

 the 1st, and the average for the month was 44.6, that of the air 

 being 39.2. 



For December, there are 3 records for 1898 (32 at 6 a.m. on 

 the 7th, 9th and 14th) and nearly complete records for 1899, 1900 

 and 1904. In 1899, the variation was from 32 to 46 at 6 a.m., 

 from 32 to 48 at noon, and from 32 to 47 at 6 p. m. The lowest 

 daily average was 32 on the 16th, 29th, 30th, and 31st, the high- 

 est was 47 on the llth, and the average for the month was 37.2, 

 that of the air being 28.2. In 1900, the variation was from 32 

 to 40.9 at 6 a.m., from 32 to 42 at noon, and from 32 to 42.6 

 at 6 p.m. The lowest daily average was 32 on the 14th, the 

 highest was 41.5 on the 1st, and the average for the month was 

 36.8, that of the air being 31.7. In 1904, the variation was 

 from 32 to 37 at 6 a. m., from 32 to 37.8 at noon, and from 32 

 to 36.5 at 6 p.m. The lowest daily average was 32 on the 10th, 

 12th, 13th, 15th, and 16th, the highest was 36.1 on the 2d, and 

 the average for the month was 33.8, that of the air being 25.2. 



In the following tables are given the detailed records of the 

 water temperature observations : 



1117618 



