A physician of Rome has recently succeeded in discovering a liquid possessing so extraordinary a power of coagulating blood, that ifto a large basin containing this fluid, one drop oi the stjptic be added, complete solidification ensues, so that the basin may be inverted without causing any blood to be lost. The following is its preparation:—Taite eigl *i and ten pints of water. Boil all together tor the space of eight hours, in an earthenware glazed vessel, frequently stirrinff the mass, and adding water sufficient to makeup the original quantity of that lost by the ebullition, taking care, however, to add the water so gradually that boiling may not be suspended. The liquid portion ot the compound is now to be strained ofl, and preserved in well-corked bottles.— [Albany Register. [The alum, itself, we apprehend, is the sole styptic; it is now used for this purpose by our dentists.