Any sudden or clumsy movement, which jars the combs or frames, will excite the bees, and if but one should be crushed, the odour of their slaughtered comrade rouses the inhabitants of the hive to a pitch of exasperation. Their powers of smelling are very acute. The human breath is abomination to them; therefore, when operating upon bees, be careful to close the mouth and breathe only through the nostrils. The best time for most operations is in the middle of a fine day.

ENGRAVED PRESSING ROLLER FOR THE GUIDANCE OF BEES IN THE CONSTRUCTION OF HONEY-COMB ON THE BARS.

This is an engraved metal roller, which, when applied to the coated underside of a comb-bar, leaves an impression as shown in the diagram. The wax having been spread on the flat bar, the roller, heated by being put into hot water, is heavily pressed over it. The roller has two wooden handles, so that considerable pressure may be given to it. The roller is a little less than two inches in diameter, seven-eighths of an inch wide, and the length from handle to handle is six inches. The diagram shows the full size of the impressions as left on the wax, after passing the roller along the comb-bar, in the manner above described. It is a contrivance invented in Switzerland, and exhibited in the International Exhibition of 1862, when the pattern roller was purchased by ourselves.

The bars of a hive prepared with these markings in wax afford ready-made foundations for regular combs, which very much facilitate the operations of the bees.

IMPRESSED WAX SHEETS FOR ARTIFICIAL COMBS.

These artificial partition walls for combs are sheets of genuine wax, about the substance of thin cardboard. They receive rhomboidal impressions by being pressed between two metal plates, carefully and mathematically prepared and cast so that the impressions are exactly the same size as the base of the cells of a honey-comb. An inspection of a piece of comb will show that the division of the opposite cells is made by a thin partition wall, common to both. Now the substance of this is said to be only the one hundred and eightieth part of an inch, whilst the artificial ones we are recommending are between the thirtieth and fortieth part of an inch, more than four times the thickness of the handiwork of the bees themselves. It would, indeed, be vain to attempt to furnish sheets of wax at all approaching their own delicate fabric; the impressed sheets are quite as thin as they can be to bear the handling which is requisite for fixing them in the hives. We find, however, that the thickness is no disadvantage; the bees speedily excavate and pare the artificial sheet so as to suit their own notions of the substance required; then, with admirable economy, they use the surplus thus obtained for the construction of the cells. After a sheet has been partly worked at by the bees, it is interesting to hold it up to the light and observe the beautiful transparency of that part of it, contrasted with the opaqueness of the part not yet laboured upon.

When it is considered, as writers tell us, that more than 14 lbs. of honey are required for the secretion and elaboration of a single pound of comb, it will not be difficult to form a just estimate of the value of this invention, which thus furnishes cheap and excellent assistance to our industrious favourites. It also shows the bee-keeper that all clean empty combs should be carefully preserved and considered as valuable stock. Another great advantage that it affords us is, that it renders us independent of guide-comb, which is not always obtainable. When a sheet or a strip of this impressed wax is properly fixed to the comb-bar, it is certain to be the guide and foundation of a straight comb. This invention has been derived from Germany, where it has been adopted many years with success. At the International Exhibition of 1862, we purchased the metal plates or castings, so as to manufacture the impressed sheets with which we are now able to supply our customers; and, after the careful trials we have made, we have great confidence in recommending them.

In the season of 1863 we furnished a Woodbury glass super, with the wax sheets fixed to the bars, in the manner hereafter to be explained, and it was truly astonishing to see the rapidity with which these sheets of wax were worked into comb. Receptacles were quickly made ready for the storing of honey, and the new combs soon became beautifully white; for, although the artificial wax has a yellow tinge, yet, after being worked at and made thinner, it is as good in colour as ordinary combs. For supers we cut the wax plates in half, making one serve for two bars.

We have received from Germany the following directions for the fastening of the artificial plates to the comb-bars. Hereafter will be described a plan which we have adopted, and to which preference is given.