It may not be generally known that a very convenient mucilage can be made of onion juice by anyone who wishes to use it. A good sized Spanish onion, after being boiled a short time, will yield, on being pressed, quite a largo quantity of very adhesive fluid. This is used quite extensively in various trades for [lasting paper on tin or zinc, or even glass, and the tenacity with which it holds would surprise anyone on making tho first attempt. It is the cheapest and best mucilage for such purposes, and answers just as well as many of the more costly and patent cements. Some of tho cements sold by street fakirs at sixpence a bottle consist of nothing bub onion juico and water, and the bottle and cork cost a great deal more than the contents.