PEEPAEATIOK OF BEES FOB aUTIK>OE WIIMTBEIHG. 





fio 6 — Map of the western ITBlted States, showing variation ia average date of first 

 killing fxost Foi each, locality the recommendations for packing and UBpacking 

 are the same as in coirespOhding zones m figure 5 The dryer atmosphere of mdst 

 of the West does not €iminisli the need of pacldng For localities where the firss^ ^ 

 frost occurs after November 2& no packing is recommended. 



coBld be kft on thronglioiit the year, but as yet no practicable way 

 has been devised for giviBg the be^ enwgh packing during tiie 

 wmter and then leaying it on througbout the summer. The commer- 

 cml double- walled hives which have been devised for this purpose 

 are all too scant in packing material for good results, and none of 

 tiiem (^n be reconamendecl 



Tho dates giv» for the removal of packing in the spring follow 

 ai^roXiiBately the average dales of the last killing frost in the 

 spring for mch looality. In ease local conditions make the removal 



