influence in the production of the disease; neither extreme cold nor heat seems especially to favor its propagation; nor do we find any just grounds for belief in contagion as a specific cause. The cases are distributed among all classes and grades of society, the high and the low, the rich and the poor, locations unexceptionable for situation, open to abundant light and air, and the pent-up hovels of the lowly and wretched, have all contributed to the material of the epidemic. We believe, therefore, that the primal origin of the disease is atmospheric, and, for the present, beyond our ken." In conclusion, your committee would express the hope that the society appreciates, at its full value, the labor so generously expended by Prof. Kirkpatrick, in thus supplying, from year to year, such voluminous and carefully prepared tables and materials illustrating the meteorological portion of their report. BENJAMIN LEE, Chairman. J. CHESTON MORRIS. METEOROLOGICAL TABLE, No. 1. A General Abstract of the Meteorological Observations made at Philadelphia, Pa., during the year 1873. By JAMES A. KIRKPATRICK, A.M. Prepared for the Philadelphia County Medical Society. Latitude 39° 57' N. Longitude 750 114' W. from Greenwich. Barometer fount 55 feet above mean tide in the Delaware River. Clear. Cloudy. Means of sky covered. Amount. or less covered. April, 68 34 5.04 46.80 55.37 49.63 50.60 14 4.08 5 25 67 72 67 68.8 91 25 May, 89 41 4.89 94 49 4.35 70.88 81.12 73.45 75.15 97 64 3.04 76.64 86.13 79.29 80.69 August, 91 61 3.37 72.26 80.18 76.02 76.15 September, 91 51 75 66 p. c. p.ct. 75 72.0 62 68 66.7 48 65 59.5 43 61 55.6 48 6459.4 60 72 69.4 55 72 72 62 67 6763.5 67.0 More than covered. 7 A. M. 2 P. M. 9 P. M. Monthly. Maximum. Minimum. 7 A. M. 2 P. M. 9 P. M. Monthly. TABLE No. 1.—Continued.—A General Abstract of the Meteorological Observations made at Philadelphia during the year 1873. Force of vapor. Winds. Barometer reduced to 32° Fahrenheit. Monthly Resultant. No. of times in 1000. inch inch inch inch inch inch January, February .380 .027 .128 .139 .144 ..137 .270 .036 .116 .135 .135 direction from N. 23° 58′ W. times inches inches inch inches 246 .129 N. 52 36 W. 279 March, .320 .027 .132 .134 .145 .137 N. 83 9 W. 331 April, .380 .122 .211 .204 .231 .215 N. 69 27 W. 116 29.903 inches inches inches 30.498 29.480 .275 30.058 30.017 30.028 30.034 30.501 29.357 .273 29.968 29.915 29.946 29.943 .287 30.666 29.237 29.947 29.911 29.928 29.929 30.181 29.574 .165 29.849 29.881 29.878 May, .689 .155 .327 .340 .361 .342 N. 36 52 W. 64 30.372 29.482 .153 29.975 29.942 29.954 29.957 June, .813 .216 .487 .456 .504 .482 S. 67 37 W. 118 30.357 29.575 .127 29.973 July, .841 .341 .616 .598 .644 .619 S. 59 56 W. 271 30.263 29.667 .094 29.980 August, .883 .293 .605 .619 .647 .624 N. 30 15 E. 87 30.294 29.672 .101 30.017 September, .871 .231 .476 .657 .117 October, November, .347 .072 .157 .493 .064 .164 December, .489 .514 .493 S. 56 19 W. 96 30.352 29.641 .160 30.056 .294 29.928 29.925 29.942 29.950 29.956 29.962 29.996 29.993 30.002 30.017 30.028 30.033 30.032 29.994 30.013 30.013 30.50129.357 .268 30.042 30.666 29.237 .202 29.942 29.901 30.357 29.575 .107 29.990 29.958 29.958 .212 30.576 28.822 30.006 29.970 29.991 29.998 30.020 30.020 29.921 29.921 29.969 29.989 7 A. M. 2 P. M. Means. 9 P. M. Monthly. 1873. METEOROLOGICAL TABLE, No. 2. Great or sudden changes, means and extremes in Temperature. 28. 31. 66 66 fell January 16. Thermometer rose from 40° at 7 A. M. to 61° at 2 P. M. 28" 9 P. M. 44 5 "7 A. M. The mean daily range of the thermometer was greatest in the winter months and least in July and August. 1872. The mean Temperature was below 32° on January 7, 8, 10, 11, 12, 18, 19, 20, 23, 24, 25, 26, 27, 28, 29, 30, and 31 = 17 days. Februray 1, 2, 3, 9, 10, 13, 14, 15, 22, 23, 24, 25, and 28 March 1, 3, 4, 5, 6, 25 Novemb. 14, 20, 30 = 13 days. 2 P. M. same day. 19 It was .35 of an inch greater in 1873 than in = 4 days. = 16 days. August 1, 2, 3 September 1, 4, 5 Total Extremes of Temperature during 1873. The thermometer was highest (970) on the 3d of July. July 3d, of which the mean temperature was 87.17°. The warmest day The thermometer was lowest (20) on the 30th of January. The coldest day was January 29th, of which the mean temperature was 810. = 3 days. 26 days. |