5-2C THK I'KACTICAL F.EE GtJII)R. 



Claustrale,'' appeared iii the preceding year. The chamber (as 

 shown p. 5^1!) may be attached to, or may form part of any 

 hn-e. It is closed by the alighting board which is hinged for 

 the purpose and made to fit i^erfectly light-proof, forming the 

 dark ante-chamber, or cloister. Two zinc aerating tubes, i" in 

 diameter and two feet long, with revolving hoods on top and 

 air holes within the chamber, provide sufficient ventilation. 

 Tire bees, shut in from light and liberty, m^ay be safely con- 

 fined in winter (379), or during manipulation of other stocks, 

 or when stocks are being moved from place to jjlace (158); 

 bees m nuclei can be retained (290), robbing^ can be effectually 

 dealt with (310), and the danger of spring or autumn dwindl- 

 ing can be reduced (377). 



