36 SOCIAL HABITATIONS. 
he has drawn the lozenge-shaped figure which has just 
been described, let him draw upon cardboard nine of them, 
as is shown in the illustration (fig. 4). Then let him cut out 
the figure, and draw his penknife half through the cardboard 
at all the lines of junction. He will then find that the card- 
board will fold into an exact model of a Bee-cell, the three 
lozenges which project from the sides forming the base, 
and the others the sides. This cell will, of course, have very 
FIG.4. 
short sides; but by the simple expedient of widening the 
lozenges, which form the sides, without altering the angles, 
the imitation cell can be made of any desired length. 
The best way of showing this beautiful structure is to 
make two models, one to lie flat or be folded and opened at 
discretion, and the other formed into a cell, and the angles 
written upon the cardboard. A little gummed paper will 
hold the sides together, so that the model can be handled 
without breaking. A very amusing puzzle may be formed 
