WASPS, ANTS AND BEES 



197 



on the hive when "observing" is not going on. In such a 

 hive, which will obviously hold but a small community (one of 

 not over 10,000 individuals) any single bee can be kept con- 

 tinuously under observation, as there are no side-by-side frames 

 between which it can crawl and thus be hidden from view. 

 To keep either of such hives in the house it is only necessary 

 to substitute for a pane of glass in a window a thin wooden 

 pane in which is cut a narrow horizontal opening, the size of 

 the regular hive-opening (if the latter is too broad it can be 



FIG. 92. An ordinary bee-hive made into an observation hive by 

 inserting glass panes in sides and putting a glass sheet under the wooden 

 cover. 



closed for a few inches at each end) . Or a narrow broad strip 

 of the full width of the window can be inserted so that the 

 lower sash of the window, when closed, will rest upon this 

 strip. In the strip cut a narrow opening of the width, or less, 

 of the hive opening. Set the observation-hive on a table or 

 shelf against the window so that the hive-opening corresponds 

 with that in the window pane or window-strip. Or, better, 

 place it six or seven inches from the window and connect hive 

 and window-opening by a shallow broad tunnel of wooden 



