" H. M. H.," Watertown, N. Y., writes: "I would be pleased to have your opinion of the probable effect of the gas from burning sulphur, considerable in amount, on the foliage of apple trees. We have an apple tree, a ' Duchess,' standing where the gas from a brick-kiln strikes it four rods away, and we notice that after each burning the leaves become spotted with brown and drop off. We are inclined to lay the cause to the gas, but can find no record of experiments in this direction".

[When sulphur is burned in a greenhouse it destroys foliage. The leaves turn black and drop. Animal life would also be destroyed under these circumstances. In the open air the sulphur would be so diluted that it would probably not be destructive. If animals could stand it we think plants could.

The description of the injured leaves seems more like the work of fungus than of sulphur. - Ed. G. M].