A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)
Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 511
e, which is also covered by a piece of board.The upper box has a moulding, fig. 1, «, fixed toits under part, which projects about a quarter ofan inch,, and so exactly embraces the upper partof the lower box, as to join these two firmly to-gether. In the deal which forms the top of the A P I S. it… … fig. 1, /», in the top of the upper box.admit.-, of seeing the progress the bees havein it, without separating it from the lowerThis pane ij covered to exclude light andcold or heal by a small shutter c. When theswarm is first pnt into the lower box, the com-munication is shut with the upper, until…
Encyclopedias and dictionaries · Aeronautics
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