The process is so simple that it might even be emulated to profit by the thrifty housewife. The kitchen mincing machine will suffice for the purpose. It is only necessary to pulp and to blend the two constituents thoroughly together. It certainly offers a means of inducing a pound of cheese to go as far as, if not farther than, a pound and a half has ever gone before. In so far as the arrest of the elusive fat was concerned there remained only one other possible avenue of escape demanding interruption. This was the sink where all plates, dishes, and cooking utensils in general are washed. In the first effort to secure this contribution the hot water carrying the desired material was led into a pit. Here the fat collected in the form of a scum, which was skimmed off at intervals and sent to the swill mill for further treatment. But this crude method gave way to one more in consonance with modern ideas. The fat is now caught at the gully. One device I saw installed to achieve this end was of an extremely simple character. It comprised a wooden box, about three feet in length by one foot in width, and about two feet in depth. It was subdivided into three cells by two partitions, which, however, did not extend to the full depth of the box. The pipe from the sink entered the box at one end while the outlet to the drain was placed at the opposite end. The box was filled with cold water, which need only be renewed when the box is emptied for cleaning and flushing, since normally it is kept charged with the water coming from the sink. The hot water bearing the fat circulates through the three cells and finally, upon reaching a certain level, passes into the drainage system. But during its passage through the box the hot water becomes so effectively chilled as to be compelled to release any fat which it may be carrying. This congeals and rises to the surface. Within a short time the top of each cell is crusted with a thick layer of solid fat which may be removed as frequently as desired. The box not only constitutes an efficient and simple, as well as inexpensive, fat-trap, but also acts as a water seal to the sink, thus preventing all nuisance or fouling of the sink pipe.