HIVES FOR BEE-KEEPERS. 
105 
frames depend on the screw, but rest always on the 
lath (/) or on the metal ends of a lower hive section. 
This not only dispenses with the possibility of frames 
sinking, but permits of the screw being slackened, 
and the frames manipulated, whichever side of the 
hive section may happen to be upwards. 
Again, as the top and bottom edges of each hive 
section are exactly in the plane of the respective 
top and bottom faces of the metal ends, when one 
hive section is placed on the other in storifying, their 
edges abut simultaneously with the metal ends, which 
are thus solidly supported, however far the tiering 
may be carried ; while, of course, the bee-space is 
secured. The section-cases are similarly arranged, 
but this is not the correct place to describe them. 
The metal ends have, cast upon their proximate 
faces, cutting edges (c, c, C), which carve grooves 
into the side bars as they are driven on, and so hold 
them with sufficient firmness. Since the frames — as 
previously pointed out — would not drop, even if the 
screw utterly failed, it is possible that hard-wood side 
bars to the frames, having their end shoulders cut 
to the distance desired for comb and interspace, might 
answer well for brood-boxes. In combs intended for 
extraction, the fixed shoulders would be an impedi- 
ment. The bevelled form {b, C) given to the metal 
end is obviously to permit of the frames slipping past 
each other, without hanging, while they are being 
manipulated. 
It would be both unphilosophical and unfair thus to 
dismiss the Heddon without noting that it has called 
our attention to some points of great moment, and 
