MOVABLE-FRAME ILIVES. 157 
‘* knife edge,’’ C., on another tin edge, at right angles with 
it, A., nailed in the rabbet of the hive, the bees cannot 
glue the frames fast. But these frames have the dis- 
advantage of getting out of place easily, too easily in fact, 
and their sharp edges make them very inconvenient to 
handle. 
326. For the L. Quinby suspended frame, see diagram 
(fig. 68). This frame is one-fourth inch deeper than that 
originally given by Mr. Quinby in his ‘‘ Mysteries of Bee- 
keeping.’” Mr. Quinby had too much space in the hive, 
under the frame. 
327. It is necessary that the hive should always slant 
forward, toward the entrance, when occupied by bees, to 
facilitate the carrying out of dead bees, and other useless 
substances; to aid the colony in protecting itself against 
robbers, to carry off moisture, and prevent rain from beat- 
ing into the hive. 
328. For this, and other reasons, the combs should run 
from front to rear,—so as 
to hang perpendicularly 
—and not from side to side 
as they do in the Berlepsch 
hive. 
329. The Langstroth 
hive, from the simple form 
given in fig. 54, was im- 
proved upon in many dif- 
ferent ways. TheStandard 
Langstroth hive has been, 
for a long time (fig. 63), 
a hive with portico, 
honey-board, permanent 
bottom-board, and ten 
frames. 
330. In this hive, the ‘‘ observing-glass,’’ in the rear, 
