The staining of the various elements of organic tissue is, as a rule, a complicated process, and when the sections to be stained are numerous, the amount of time and labor represents quite an item. By means of the funnel devised, this becomes nominal; a thousand sections can be stained in the same amount of time and by the same amount of work as can one.
The instrument consists of a shallow funnel with a stop-cock located beneath the expanded portion. In the expanded portion fits a removable, flat, shallow, finely perforated tray, divided into several compartments. The size of the funnel is about 6 inches in diameter, and the number of compartments depends on the scope of the work, and may be from twelve to twenty-four. The entire apparatus may be made of metal, porcelain or glass. One can readily make the entire outfit (by cutting off the top