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2 blocks not present in 1859 1860 1861; present in 1866 1869 1872
cells constructed like those of the bee or the wasp gain in strength, and save much in labour and space, and especially in the materials of which they are constructed. With respect to the formation of wax, it is known that bees are often hard pressed to get sufficient nectar, and I am informed by Mr. Tegetmeier that it has been experimentally proved that from twelve to fifteen pounds of dry sugar are consumed by a hive of bees for the secretion of each pound of wax; so that a prodigious quantity of fluid nectar must be collected and consumed by the bees in a hive for the secretion of the wax necessary for the construction of their combs.

must be a most 1859 1860 1861
must be an 1866
and the time consumed in collecting the honey must be an 1869 1872

the numbers of a humble-bee which could 1859 1860 1861
the numbers of a bee allied to our humble-bees, which 1866
whether a bee allied to our humble-bees could 1869 1872

a 1859 1860 1861
any 1866
large numbers in any 1869 1872

that 1859 1860 1866 1869 1872
(differently to what really is the case) that 1861

wax. 1859 1860 1861
wax and labour. 1866
labour and wax. 1869 1872

wax 1859 1860 1861 1866
labour and wax 1869 1872

would 1859 1860 1861 1869 1872
and labour would 1866

are consumed by a hive of bees for the secretion of each pound of wax;
so
to
that a prodigious quantity of fluid nectar must be collected and consumed by the bees in a hive for the secretion of the wax necessary for the construction of their combs. Moreover, many bees have to remain idle for many days during the process of secretion. A large store of honey is indispensable to support a large stock of bees during the winter; and the security of the hive is known mainly to depend on a large number of bees being supported. Hence the saving of wax by largely saving honey must be a most important element of success
to
in
any family of bees. Of course the success of
the
any
species
of bee
of bee
may be dependent on the number of its
enemies,
parasites
or
parasites,
other enemies,
or on quite distinct causes, and so be altogether independent of the quantity of honey which the bees
can
could
collect. But let us suppose that this latter circumstance determined, as it probably often
has
does
determined,
determine,
the numbers of a humble-bee which could
existed
exist
in a country; and let us further suppose that the community lived
through
throughout
the winter, and consequently required a store of honey: there can in this case be no doubt that it would be an advantage to our
imaginary humble-bee,
humble-bee,
if a slight modification
in
of
her
instincts
instinct
led her to make her waxen cells near together, so as to intersect a little; for a wall in common even to two adjoining
cells
cells,
would save some little wax. Hence it would continually be more and more
advan- tageous
advantageous
to our
humble-bees,
humble-bee,
if
they
she
were to make
their
her
cells more and more regular, nearer together, and aggregated into a mass, like the cells of the Melipona; for in this case a large part of the bounding surface of each cell would serve to bound
the adjoining
other
cells, and much wax would be saved. Again, from the same cause, it would be advantageous to the Melipona, if she were to make her cells closer together, and more regular in every way