A NEW SETTING-BOARD. 37 



and are held down by a small elastic string-band. (These bands 

 are marked c.) The glass on one side must then be levered up 

 by the little implement before mentioned, just sufficient to 

 admit of the wing being moved up into its place by an ordinary 

 setting-needle. When the wing is in its right position the glass 

 must be allowed to rest on it to hold it in its place. The under 

 wing is next treated in the same manner, only care must be 

 taken that the upper wing does not slip back during the process. 

 The other side of the insect is then dealt with. A great 

 advantage of the glass is that the operator can see to make the 

 two sides perfectly symmetrical. 



Both hands must of course be used in the operation — one to 

 lever up the glass, and the other to move the wing into position. 



Description of Board. 



The materials used are wood, glass, paper, strip of cork, 

 two strips of fine muslin or other thin material, and glue. 



The boards are made of wood, and are papered on the 

 surface, including the rounded part of the central groove. A 

 strip of cork is inserted at the bottom of the groove (e) to receive 

 the pin on which the body of the insect is placed. This groove 

 must be made of a depth to suit the taste of the setter (see 

 observation at the end). The shape of the surface of the board 

 is a very important matter, both as to the curve it is intended 

 the wings are to take, and the flatness of the surface where the 

 glasses (gg, Fig. II.) impinge upon the wings ; the flatness must 

 of course extend far enough for the glasses to impinge upon the 

 under wings as well (points ff, Fig. II.). The glasses themselves 

 extend beyond these points, in fact nearly to the body groove 

 (to kk, Fig. II.). 



There is a narrow raised beading of wood (hh, Fig. II.) at the 

 two sides of the board, of the thickness of the glass, and to this 

 beading the pieces of glass are hinged, by glueing on a strip of 

 muslin or other thin material (ll, Fig. II.). Paper will do, only 

 it is not so durable. 



It will be found convenient to leave a small space between 

 each pair .of glasses, in order to arrange the antennae with a 

 moist camel's-hair brush after setting the wings. 



The glasses are pressed to the board by a narrow elastic 

 band placed over each pair. These bands entirely encircle the 

 board, and are moved backwards off the glasses and forwards on 

 to the glasses again, by rolling. 



For the guidance of any one who wishes to make this kind 

 of board the diagram (Fig. III.) is given. The sizes — viz. width 

 of board and relative depth of groove — are those which by expe- 

 rience are found to be most useful. And the contour of the 

 surface is recommended for those who adopt the curved style of 

 setting. 



