. British bee journal & bee-keepers adviser. Bees. 72 THE BRITISH- BEE JOURNAB. [Feb. 23, 1905. side. Nothing is now needed but good ventilation to' keep the colony cool and comfortable*,- and in this provision lies the chief merit of Gouttefangeas' inven- tion, for the detention system is in itself no great novelty, having been advocated for some time past in Germany and else- where. The desired -result is achieved by using about 4 in. When thus in place the lower- most of the rows of holes pierced in each chimney should be just above the floor of the chamber, and close to the entranc
. British bee journal & bee-keepers adviser. Bees. 72 THE BRITISH- BEE JOURNAB. [Feb. 23, 1905. side. Nothing is now needed but good ventilation to' keep the colony cool and comfortable*,- and in this provision lies the chief merit of Gouttefangeas' inven- tion, for the detention system is in itself no great novelty, having been advocated for some time past in Germany and else- where. The desired -result is achieved by using about 4 in. When thus in place the lower- most of the rows of holes pierced in each chimney should be just above the floor of the chamber, and close to the entrance' of the hive. In the experience of the inventor, two such chimneys suffice to keep the hive pure and fresh. Longer chimneys would pro- duce a stronger draught, and may be used. Fig. 1.—"Claustral" Hive (Dadant-Blatt) with Two Ventilating Chimneys. perforated metal chimneys and aerating channels of various kinds, but all so con- structed as to be practically impervious to light. Two of the former are shown as in use in Figs. 1 and 2, and one separately in Fig. 3. About 1 in. in diameter, and 2 ft. to 2g; ft. long, they are pierced in six or seven circumferential rows of from eight to ten bee-excluding holes each, with an interval of about nine-tenths of an inch between each row. Two chim- neys, provided with movable hoods to keep out the snow, are used for each chamber, their position being about 4 in. from the nearest side of the chamber, and two- fifths of an inch from the hive proper. They. 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
