VI 
A HUMBLE-BEE HOUSE 
WHEN one is attending to and observing a number 
of colonies it is a great advantage to have them 
arranged close together, under cover, and at a con- 
venient height from the ground. To meet this 
w9 Sk 

Fic, 18.—Plan of Sladen’s Humble-bee House, showing position of holes for 
eight nests in the bottom of the house and of the nests on the shelves. 
object I have devised a humble-bee house, which 
has enabled me to carry out my observations under 
the most favourable and pleasant conditions. 
The house itself consists of an ordinary wooden 
hut, 6 ft. long, 451. 6)un, wide, and 6,1 high, 
covered with match boards. There is no floor. 
There is a window on one side, and this ought to 
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