Mortality and Insanity in Separate Plan Prisons in England and America *Read by Dr. Parrish at a meeting of the College of Physicians of Philadelphia, Sept. 2nd, 1851.

Of the 1631 white prisoners admitted during the same period, there were 73 deaths, or about 4|percent, of the whole number; the per-centage in different years varying as in the case of the coloured. Thus, in 1830, the per-centage is 4.19; in 1831,4.18; in 1832, 1.44; in 1833, 1.11; in 1834, .80; in 1835, 1.20; in 1830, .99; 1837, 3.00, &c., &c. The average mortality of the white population of the city and liberties, during the decennial period above referred to, was 2.37. The mortality above indicated would be somewhat increased by taking into account the number of pardons granted on account of ill-health within this period; but, inasmuch as we have no means of arriving at this, we shall exclude it from the calculation. It may be stated, however, that to the close of the year 184S, 278 prisoners had partaken of executive clemency.