?( 9 ) 13.69 per mille of strength. Of the 45 jails in the province, the 34 following recorded cholera in 1864 :- Alipore ... Strength 1,793 Admissions 69 Deaths 17 Baraset ... ” 139 ” 1 ” 0 Jessore ” 489 ” 47 ” 22 Kishnagarh ” 363 ” 4 ” 3 Howrah ... ” 127 ” 3 ” 1 Hugli ” 451 ” 28 ” 7 Bardwan ... ” 411 ” 8 ” 4 Bankura ... ” 395 ” 42 ” 16 Raniganj ... ” 26 ” 3 ” 1 Rajmahal ... ” 169 ” 35 ” 14 Deogarh ” 89 ” 1 ” 0 Rajshahi .. ” 394 ” 63 ” 18 Rangpur . . ” 323 ” 3 ” 1 Bogra ” 171 ” 1 ” 1 Pubna .. ” 141 ” 26 ” 10 Faridpur .. ” 410 ” 1 ” 1 Bakirganj ” 410 ” 44 ” 17 Dinajpur ... ” 462 ” 84 ” 37 Noakhali ... ” 224 ” 5 ” 2 Chittagong ” 327 ” 1 ” 0 Tipperah . . . ” 398 ” 1 ” 1 Dacca ” 463 ” 6 ” 1 Midnapur ... ” 544 ” 6 ” 4 Cuttack ” 353 ” 5 ” 3 Monghyr ... ” 362 ” 1 ” 0 Bhagalpur ... ” 359 ” 57 ” 10 Darjiling ... ” 51 ” 2 ” 2 Chaebasa ... ” 215 ” 4 ” 0 Gaya ” 39 ” 1 ” 1 Patna ” 467 ” 28 ” 8 Arrah ” 499 ” 6 ” 3 Champarun ” 203 ” 5 ” 3 Mozaffarpur ” 433 ” 15 ” 1 Chaprah ” 440 ” 9 ” 1 The strength of the affected jails is 12,525, the percentage of admissions to strength 4.91, and of deaths to admissions 34. Of the 615 admissions there were 6 in January, 47 in February, 145 in March, 243 in April, 72 in May, 34 in June, 14 in July, 10 in August, 7 in September, 9 in October, 16 in November, and 12 in December. Taking all the figures together, the monthly prevalence of the disease is shown on the accompanying diagram. On the cholera map for 1864 are marked the districts above shown to have been affected by the disease. The incidence of cholera of 1864 among the troops and jails in Bengal Province was considerably less than in the preceding year, but more consi- derably greater than in the year before that. It more closely resembled in point of frequency the cholera of 1861. The figures representing admissions in each year from cholera among the troops and prison populations in the Bengal Province for the four-yearly period ending 1864 are here reproduced, with the figures for 1861 added for sake of comparison:- Years. Troops. Prisoners. Total. 1861… 162 588 740 1862 ... 79 367 446 1863 ... 75 1,007 1,082 1864 ... ... 109 615 724 The figures for the troops include the Europeans and natives. The incidence of cholera among the troops and prisoners in jails is in no degree an index to the actual prevalence of the disease among the civil population of the same localities or districts. Cholera, as has often been observed, may be raging with great fatality in a district or even in a town without affecting the troops or prisoners dwelling in the same place. On the other hand, it is very rare for the troops and prisoners to be affected by cholera without its being at the same time more or less prevalent among the civil population. Meteorology- c