146 ‘THE BEE-IIIVES. 
and Apiary, not that they have any practical importance 
for us, but because his system is peculiar. The frames are 
removed from the bottom, so that, in order to open one of 
Fig. 67. 
THE GRAVENHORST HIVE. 
(From the ‘‘ Iilustrierte Bienenzeituny.’’) 
these hives, it requires the strength of a strong man to in- 
vert it, especially if it is full of honey. 
The Gravenhorst hive is not intended for ladies. 
Fig. 58. 
OLD STANDARD LANGSTROTH FRAME 
