Later in the year (July, 1S65), in the Toronto Globe, appeared a letter from this sjime Wallace or Conover, in which he, on 20th March of that year, makes to Thompson the proposition to have the dam destroyed, on the ground that " one of my aunts, a Virginia lady, an enemy of everything Yankee, owns the land on which the dam is built, and her residence and out-buildings are only a few rods from the abutments of the work. This will afloid you some idea of the facilities we have at ' command to accomplish our objei t. The necessary men for the business are engaged."

This letter api>ears to be genuine and shows on its face that it was a mere decoy to get Thompson to answer explicity that he upprured such a scheme. Instead of this, the man who took him the letter swears tliat he said : " Is the man mad ? Is he a fool ?" and tabooed the whole proposition.

HISTORY OF WESTCHESTER COUNTY.

The scheme, as hatched by the United States detective, was an ingeniuus one, to make Thompson tliiuk the project of blowing up the L'roton Dam a fensible one, but, as a serious measure, it never had any existence, outside of the brain of the detective.

The Aid Societies. -- We have noticed, under the head of the "Two Years' Volunteers," the patriotic manner in which all parties joined, in Port Chester, in the effort to avert suffering from the families of the first company that went from the county. Other towns were by no means idle in the g;ood work ; but it is much to be regretted that the records of these societies have, for the most part, perished, and that particulars of names and of the work done are not accessible.