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Report of the Commissioner of Patents for the year 1857, 1858
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METEOROLOGXY. 523 SAN FRANCISCO, CALIFORNIA. Latitude, 57° 48 N.; longitude, 1220 23 W. Elevation above tide-water, 115 feet.

Hours of observation, 7 A. M. and 2 P. M. Period without frost, 365 days. Observer, WIIIIAM O. AYRES, M. D.

Jan. Feb. Mar. Apr. May. June. July. Aug. sepr. Ocet. Nov. Dec. Annual.

Thermometer, mean. 51.59 51,69 56.19 59.62 57.16 61.12 59.92 59.80 62.33 61.59 56.37 51.77 57.43 92 85.

1 668 68 75 83 78 938 73 97 70 61. Therm'r, extremes., 36 38 47 5l 51 53 53 53 54 32 4t 43........ Rain, inches...... 1.30 4.93 0.81 0.00 0.00 0.14 0.00 7 0. 00 0.24 2.22 3.34 12.97

SAVANNAH, GEORGIA.

Latitude, 320 05 N.; longitude, 810 17/ W. Elevation above tide-water, 42 feet. Hours of observation, 7 A. M. and 2 and 9 P. M. Latest frost in spring, March 3; earliest frost in autumn, September 20; period without frost, 200 days. Observer, JoHxN F. PosEx, M. D.

8 Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oet. Nov. Dec. Annual.

Thermometer, mean. 11.33 57.83 53.37 59.23 70.50 79,30 76 97 78.88 76.27 62.62 57,50 57.230 64.26 Thermr. e 66 79 80 830 88 97 88 96 92 80 79 78....

ermr, extremes.;, 13 34 29 38 53 68 63 67 57 45 27 88....... Rain, inches....... 1.85 0.95 2.80 2.66 1.25 0.85 10.27 4.74 1.08 3.12 1.03 2.91 33.51

SAVANNAH, OHIO.

Latitude, 410 12/ N.; longitude, 820 30/ W. Hours of observation, 7 A. M. and 2 and 9 y. M. Latest frost in spring, June 6; earliest frost in autumn, September 23; period without frost, 108 days. Observer, JoHN INGRAM, M. D.

Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dec. Annual.

Thermometer, mean. 14.17 37.01 32.29 38.36 56.76 69.14 74.26]/ 71.33 66.08 50.16 34.59 34.64 48.23

59 6; 74 476 ds 97 0s 08 956 77 695 58.y.. Therm'r, extremes.)-=2bo O 4 18 32 47 54 53 37 23 10 I8.. Rain, inches......-, 1.73 3.40 1.23 2.76 4.34 3.69 5.63 3.63 1.0 5.46 6.60 3.75 44.50

SPRINGDALE, KENTUCKV.

Latitude, 380 07 N.; longitude, 850 34' W. Elevation above tide-water, 57 0 feet. Latest frost in spring, April 28; earliest frost in autumn, September 30; period without frost, 184 days. Observer, Mrs. LawRENGCE YOUNG.

Jan. Feb. Mar. Apr. May. June. July. Aug. Sept Oct. Nov. Dec. Annual.

Thermometer, mean. 21.24 47.87 40.54 42.68, 58.58 69.69 73,70 73.61 69.59 54,944 41.76 41.59 53,03 1 43, 85) 77 95 93 906 55 93 h 4...... 414 3 ii is 46 1s 4, s, 3e e ie e ideeeeee. 1,69 3.76 0.50 5.54 5.17 5.17 4.33 4.39 0.87 1.99 5.32 5.00 46.75

Therm'r, extremes.

Rain, inches.