DADANT SYSTEM OF BEEKEEPING 



79 



undoubtedly has some advantages that cannot be secured in 

 local extracting, because of greater facilities. Each apiarist 

 must decide this for himself. Our principal objection to it is 

 in the necessity of hauling the supers back and forth and the 

 fact that the honey cools and thickens after being removed from 

 the hives and is more difficult to extract. Some beekeepers who 

 use a central plant find it necessary to heat the room overnight, 

 at least, to warm up the honey for extracting. 



Fig. 43. First honey extractor of Hruschka. The infancy of the 

 development of centrifugal force 



