Lake Maxinkuckee, Physical and Biological Survey 155 



below freezing*. All these were 32° except that on the 27th when 

 it was 36°. In 1900, the record is complete for the month. The 

 variation was from 32° to 35° at 6 a.m., 32° to 34° at noon, and 

 32° to 34.5° at 6 p.m., the lowest daily average for the air during 

 the same period being 22.6°. 



In 1901, the record is also complete for the month. The varia- 

 tion was from 32.5° to 35.5° at 6 a.m., from 32° to 34.5° at noon, 

 and from 32.9° to 34° at 6 p. m. The lowest daily average was 

 32.5°, the highest 34.3°, and the average for the month was 33.1°, 

 that of the air for the same period being 19.3°. 



For March, 1899, the only record is for the 11th when the water 

 was 33.5°. In 1900, the record is complete. The variation was 

 from 33° to 37° at 6 a.m., from 33° to 37.5° at noon, and from 

 33° to 38.5° at 6 p.m. The lowest daily average was 33.1° on the 

 17th, the highest 37.5° on the 31st, and the average for the month 

 was 35.4°, that for the air in the same period being 30.1°. The 

 record for March, 1901, is complete. The variation was from 

 32.3° to 39.8° at 6 a.m., from 33° to 49° at noon, and from 32.9° 

 to 43.4° at 6 p.m. The lowest daily average was 33° on the 1st 

 and 3d, the highest 42.4° on the 29th, and the average for the 

 month was 36.4°, that for the air in the same period being exactly 

 the same, 36.4°. The average for March of the 2 years was 35.9°, 

 that of the air 33.25°. 



For the month of April, the record is complete for 1900 and 

 1901. In 1900, the variation was from 39° to 67° at 6 a.m., from 

 44° to 67° at noon, and from 45° to 67.5° at 6 p.m. The lowest 

 daily average was 42.6° on the 1st, the highest 67.1° on the 30th, 

 and the average for the month was 49.8°, that for the air in the 

 same period being 52.3°. In 1901, the variation was from 36° 

 to 60.1° at 6 a.m., from 38.5° to 65.5° at noon, and from 39° to 

 69.8° at 6 p.m. The lowest daily average was 38.6°, the highest 

 64°, and the average for the month was 47.9°, that for the air 

 in the same period 48.9°. The average for April of the 2 years 

 was 48.8°, that for the air, 50.6°. 



For the month of May, the record is approximately complete 

 for 1900 and 1901. In 1900, the variation was from 56° to 72.5° 

 at 6 a. m., from 57° to 74° at noon, and from 57° to 74° at 6 p. m. 

 The lowest daily average was 57° on the 10th, the highest 73.3° 

 on the 30th, and the average for the month was 64.74°, that for the 

 air being 66°. In 1901, the variation was from 51.9° to 66° at 6 

 a.m., from 50.5° to 70.1° at noon, and from 51.1° to 68° at 6 p. 

 m. The lowest daily average was 52.8°, on the 2d, the highest 



