THE EVOLUTION OF THE BEE-HIVE. 



231 



instead of being placed in position from above, they are in- 

 serted from the back of the hive. Bee-space between the sides 

 of the hive and that of the frames is preserved by the shorter pro- 



Fig. 1. 



The Berlepsch Hive 



Fig. 2. 



Fig. : 



jections of the bottom bar of the frames. Space between the frames 

 is secured by four nails, two driven in the top bar on the one side, 

 and the other two in the bottom bar on the opposite side of the 

 frame. The length of the frame is constructed so as to admit bee- 

 space between the frames and the floor of the hive. The glass- 



