In clarifying, I use for 50 lbs. of sugar one pint of skimmed milk, put into the syrup when cold, and place it over a moderate fire until it rises, which should occupy thirty or forty minutes; then skim and boil until it will grain; after which I put it into a tub, and turn on a little cold water, and in a few days the molasses will drain out, and leave the sugar dry, light, and white. Mr. E.W. Clark, of Oswego, furnishes the following:-- _On Fining Maple Sugar_.--The sweet obtained from the maple tree is undoubtedly the purest known; but from mismanagement in the manufacture it frequently becomes very impure. Its value is lessened, while the expense of making it increases. I am sensible that the method which I shall recommend is not altogether a new one, and that it is more by attending to some apparently minute and trivial circumstances, than to any new plan, that my sugar is so good. Much has been written upon, and many useful improvements been made in, that part of the process which relates to tapping the trees, and gathering and evaporating the sap, &c.; but still, if the final operation is not understood, there will be a deficiency in the quality of the sugar. I shall confine myself to that part of the operation which relates to reducing the syrup to sugar, as it is of the first importance. My process is this:--When the syrup is reduced to the consistence of West India molasses, I set it away till it is perfectly cold, and then mix with it the clarifying matter, which is milk or eggs. I prefer eggs to milk, because when heated the whole of it curdles; whereas milk produces only a small portion of curd. The eggs should be thoroughly beaten and effectually mixed with the syrup while cold. The syrup should then be heated till just before it would boil, when the curd rises, bringing with it every impurity, even the coloring matter, or a great portion of that which it had received from the smoke, kettles, buckets, or reservoirs. The boiling should be checked, and the scum carefully removed, when the syrup should be slowly turned into a thick woollen strainer, and left to run through at leisure. I would remark, that a great proportion of the sugar that is made in our country is not strained after cleansing. This is an error. If examined in a wine-glass, innumerable minute and almost imperceptible particles of curd will be seen floating in it, which, if not removed, render it liable to burn, and otherwise injure the taste and color of it.