Can you suggest any method for preventing the escape of miasmata from graves, or from places for the interment of the dead?—I cannot suggest any methods as the results of experiment; but, at the same time, I think it possible that the evil might be much abated by the use of certain materials. For example, in a theoretical point of view, chloride of lime would be quite effectual, but it might not be applicable in practice, both from its expense, and from its great tendency to be decomposed. A cheap method of absorbing putrid effluvia, is by a mixture of charcoal from burnt tar, burnt clay, and gypsum. When such a mixture is mixed with putrid matter, all smell is immediately removed, and the matter is rendered inoffensive to health. When this mixture is strewed over decomposing animal and vegetable matter, it ceases to emit disagreeable odours. In like manner, if a layer of such a cheap mixture as this were thrown around and over a coffin, it would absorb probably the greatest part, if not all, of the putrid miasmata arising from the decomposition of the body. It possesses also this advantage, that it would not impair by keeping, even though the coffin did not burst for some years. I beg, however, again to state, that I throw this out as a mere suggestion, as I have never tried it in the case of graves, although I think it would be well worthy of a trial. Vegetation also ought to be encouraged over the graves. The legitimate food of plants is derived from decaying animal matter; for indeed all the food existing in the air, from which they derive their nutriment, is furnished to the atmosphere by the decay of organic matter. Plants assist in absorbing the emanations which escape from graves.