By P. E. Hogg, M.D., Surg eon-Major, A.MD. In 1873, a battery of Horse Artillery, fresh from home, suffered severely at Meerut, where the sub-soil level from 14 feet in September 1869, rose in 1870 to 13 feet; in 1871-1872 to 12; in 1873 to 11 ; and in 1874 to 9 feet 6 inches: the proximity of the Ganges canal, and certain questions connected with drainage and irrigation were blamed by some, ye...