1871.) 39 [Chase. 
gether with the observations at Pennsylvania Hospital for the same period, 
in the following tables. The measurements are given in millimetres. 
J.—QuUARTERLY RAIN-FALL AT LiIsBoNn. 
YEARS. WINTER. SPRING. SUMMER. AUTUMN. ‘TOTAL. 
1855 280.8 272.7 15.4 862.5 930.9 
1856 513.4 800.7 8.5 90.3 912.9 
1857 267.8 152.2 67.9 324.4 812.3 
1858 224.2 tise fh 567.6 912.1 
1859 128.0 201.8 71.6 306.9 708.3 
1860 210.9 122.4 39.6 187.3 560.2 
1861 OULD 154.3 14.6 311.4 981.8 
1862 364.4 282.9 6.6 176.9 830.8 
1863 181.8 196.6 64.8 101.6 544.7 
1864 155.3 282.2 33.9 863.5 834.9 
1865 O1L.G 159.2 24.4 487.2 1042.4 
1866 214.7 365.8 14.6 82.3 676.9 
1867 197.2 216.2 18.6 172.1 599.1 
1868 162.9 76.9 38.0 279.4 5 
1869 323.2 158.5 3.1 66.0 
1870 805.7, 11.1.6 21.9 60.3 
Mean 275.2 197.9 27.9 252.5 
TT.—QuvuantEeRLy RAIN-FALL AT PHILADELPHIA. 
YEARS. WINTER. SPRING. SUMMER. AUTUMN. TOTAL. 
1855 193.0 169.9 485.4 257.8 1056.1 
1856 284.5 211.8 241.3 187.5 925.1 
1857 1844 359.9 482.6 133.4 1160.3 
1858 264,9 272.8 Q744 297.1 1038.9 
1859 376.7 376.9 376.4 371.6 1501.6 
1860 240.3 2 311.7 342.9 1124.5 
1861 269.8 362. 943 3 832.0 1207.6 
1862 292.6 254.5 263.1 343.9 11541 
1863 280.7 442.0 207.4 153.4 1173.5 
1864 174.8 448.3 204.2 327.9 1155.3 
1865 370.1 874.7 291.9 380.3 1416.9 
1866 390.4 247.9 194.6 370.9 1203.8 
1867 230.1 370.6 749..5 228, 1571.3 
1868 225.8 401.3 268.0 404.6 1299.2 
1869 318.5 296.2 247.7 337.8 1200.2 
1870 997.7 404.9 303.8 195.8 1202.2 
Mean 274.6 326.5 323.6 287.2 1211.9 
Tt appears, therefore, that the heaviest rain-falls at Lisbon and the 
lightest at Philadelphia, are usually in the Atitumn and Winter semester 
the heaviest at Philadelphia and the lightest at Lisbon, in the Spring and 
Summer. In ten years out of the sixteen, when the rain-fall of the entire 
year was above the average at one station, it was below the average at 
the other. 
