WAX AND COMB CONSTRUCTION. 
183 
larger. Fig. 66, c, shows a series of these where the 
change from e to /has taken place in seven cells. 
But, besides this irregularity, due to improper 
alignment on both sides of the comb, there is another 
/I 
/ 
Fie 
. 66. — Variation in Bases of Cells. 
which we have observed in drone comb, but never 
in worker comb, although Wyman (171) mentions an 
instance of its being found 
in this. Fig. 67 will ex- 
plain this variation, the 
thick lines representing the 
cells on one side of the Fig. 67. — Variation in Drone 
comb and the thin lines Comb, 
those on the other. In this case the pyramidal bases 
are impossible, and we therefore find them flat. 
It has been generally asserted that bees begin by 
building rows of cells to the roof of hive or top bar, 
and continue these parallel. But this is by no means 
