ARTIFICIAL AIDS TO COMB-BUILDING. 20g 
inside the frame, and are hinged together, are applied 
above and below, and the whole passed through the 
press, turning out perhaps the most solid midrib pro- 
duceable, as the wax by this process suffers no exten- 
sion in area. The method is, however, only suitable 
to a very large apiary possessing its own press, as 
frames already “ wired and waxed ” would occupy 
much room^ and need careful packing for transmission. 
The “ Given system — metal taking the place of 
plaster — is so exactly like a method of my own, that 
the explanation of the latter will make the former 
more intelligible, while it will redeem a promise given 
Fig. 61.— Casts for Impressing Sheets, Section (Scale, Jj;)- 
A—b, Board ; p, Plaster ; //', Frame in which Plaster is Cast. B, The Mould 
Sheet— 66, Bottom Bar of Hive Frame. C, The Mould Open— <6, Top Bar ; 8b, 
Side Bar of Frame ; other Letterings as before. 
on page i8i. Take a sheet of good foundation, place 
it upon a flat board {d, A, Fig. 6i), and make a frame 
of wood iff'), ijin. deep, and slightly smaller than 
the hive frame used in the apiary. Cut slots in one 
side, to admit two bent garnet hinges (/i) ; grease, 
to prevent adhesion ; and place, with the hinges (/z) 
in position, over the foundation, which has its cell 
I bottoms filled with water, from which all air bubbles 
I are to be carefully removed. Now mix sufficient 
1^1 plaster of Paris (dentists’ by preference) to fill the 
' mould, and pour in. Its weight will displace the 
water, which will flow off at the top. The plaster 
II VOL. II. P 
