. British bee journal & bee-keepers adviser. Bees. September 1, 1874.] THE BRITISH BEE JOURNAL. without leaving their cluster, and since the introduction, by Mr. Cheshire, of perforated vulcanite, which is a perfect non-conductor, in lieu of perforated zinc, which is one of the best conductors of heat known, the food may be thus administered without the slightest chill or condensation, and from the arrangement of t];e jDerforations the quantity presented to the. bees may be regulated with the greatest nicety. The vulcanite employed is not thicker than zinc, and may be perforated with a hot
. British bee journal & bee-keepers adviser. Bees. September 1, 1874.] THE BRITISH BEE JOURNAL. without leaving their cluster, and since the introduction, by Mr. Cheshire, of perforated vulcanite, which is a perfect non-conductor, in lieu of perforated zinc, which is one of the best conductors of heat known, the food may be thus administered without the slightest chill or condensation, and from the arrangement of t];e jDerforations the quantity presented to the. bees may be regulated with the greatest nicety. The vulcanite employed is not thicker than zinc, and may be perforated with a hot knitting- needle, or hair-pin. The principle employed by Mr. Cheshire in his arrangement of the perforations is that of the wedge, the thin end of which is so well known as a bugbear, but which for the purpose here intended is invalu- able as a governing mechanical power. The whole matter is verj' simjale, as will be seen by the engraving; the bottle is supposed to be standing upon the vulcanite, exactly over the feeding-hole, and the vulcanite being moveable the wedge may be 'driven,' or ' withdrawn,' to suit the necessities of any particular stock to which it may be applied. Another method, and one which perhajDs is more easily manage- able, consists in giving the wedge a curved form, mechanically called a ' snail,' as illus-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original London
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Keywords: ., bookcentury, bookdecade1870, bookpublisherlondon, booksubjectbees
