16 pages. located in IDEAL on the university library page., Severe drouth' and a chinch-bug infestation cooperated last year for the destruction of crops in Illinois; but we have found means of separating the two effects by an analysis and comparison of crop reports in two groups of counties, in one of which both of these agencies were present and in the other only one. It is my conclusion, from these- data,ยท that between four and five million dollars' worth of corn wheat, oats, and forage grasses were destroyed by the chinch-bug last year in this state.
