Sometime ago while experimenting on ways and means of making butterfly wing-prints I discovered a process which I believe to be new and simpler than any yet devised. Several methods have been used in the past, notably by Denton in his butterfly and moth books. One of the chief methods and one which has been described in several places is that of coating a matt surface paper with a solution of gum arabic and pressing the butterfly or moth wing upon this surface under a screw press. After being allowed to harden the paper with the wing adhering is removed from the press and the wing stripped off leaving the scales sticking to the gum-coated surface of the paper.