884 THE BEE keeper's MANUAL. 



rian, on the approach of cool weather, to transfer his bees 

 from a hive in which they cannot winter, to one of the 

 common construction. As soon as the weather in the Spring 

 is sufficiently warm, they may again be placed in the ob- 

 serving hive, in which, (as both sides of every comb admit 

 of inspection,) every bee can be seen, and all the wonders 

 of the hive are exposed to the full light of day ; (see p. 24.) 

 In the common observing hives experiments are often con- 

 ducted with great difficulty, by cutting away parts of the 

 comb, whereas in mine, they can all be performed by the 

 simple removal of one of the frames, and if the colony 

 becomes reduced in numbers, it may, in a few moments, be 

 strengthened by helping it to maturing brood from one of 

 the other hives. A very intelligent writer in a description 

 of the difiPerent hives exhibited at the World's Fair, in Lon- 

 don, lamented that no method had yet been devised of ena- 

 bling bees to cluster, in cool weather, in an observing hive, 

 and that it was found next to impossible to preserve them 

 in such hives over Winter. By the use of the movable 

 frames, this difficulty is entirely obviated. 



I cannot allow this work to come to a close, without ac- 

 knowledging my great obligations to Mr. Samuel Wagner, 

 of York, Pennsylvania. To him I am indebted for a knowl- 

 edge of Dzierzon's discoveries, and for many valuable sug- 

 gestions scattered throughout the Treatise. 



