qualities of 231 quantity required for winter consumption 162 average afforded by a colony 226 sometimes taken _ib._ secretion of, promoted by electricity 232 separation of, from wax 216 taken by means of dividers 167 Honeycomb 339 Honey-dew 71 ancient opinions of 71 modern ditto 72 Gilbert White's 71 Dr. Evans's 72 Dr. Darwin's _ib._ Mr. Curtis's _ib._ Sir J. E. Smith's 73 Boissier de Sauvages's 79 trees addicted to it 77 yields a great harvest to the storifyer 78 Humble-bees 207, 209, 319, 327 Humming, causes of 270