Show liaty af tt 4 i titar transferring S vr verr RR ind ENGRAVING EN G hav ings according to the paragraph in the builder a british periodical engravings may be transferred or multiplied in a very simple and curious manner worthy of examination by scientific men through the aid of starch and iodine the paragraph directs the engraving to be placed for a few seconds over the vapour japour of iodine which it states has the property of fixing on the black blacic parts or ink of the engraving but not on the white or imprinted parts of the paper to take an impression from an engraving thus more is ia I 1 necessary than to dip a slip of white paper in a weak solution of starch garch and when dry to lay the paper taper on the iodized ionized engraving and place them for a few minutes under tinder a press the builder characterizes acte this as an important discovery yet in its infancy the idea is at all events a very pretty arid and ingenious one and men of science will perceive that it is susceptible cep tible tibie of various modifications soine of which may be found of practical utility |