. The bee-keeper's guide; or, Manual of the apiary. Bees. 74 THB bhb-kbephr's guide ; are the ocelli. Rarely there are but two ocelli, and very rarely but one. The simple eyes (Fig. i,f//) are circular, and possess a cornea, lens or cone, and retina, which receives the nerve of sight. From the experiments of Reaumur and Swammerdam, which consisted in covering the eyes with varnish, they con- FiG. Longitudinal Beciion Eye.âFrom, f'owan. c Facet. h Hair. (â (â Lenses, pip2pi Rods. m Basilar membrane. u Optic nerve. eluded that vision with these simple eyes is very indistinct, though
. The bee-keeper's guide; or, Manual of the apiary. Bees. 74 THB bhb-kbephr's guide ; are the ocelli. Rarely there are but two ocelli, and very rarely but one. The simple eyes (Fig. i,f//) are circular, and possess a cornea, lens or cone, and retina, which receives the nerve of sight. From the experiments of Reaumur and Swammerdam, which consisted in covering the eyes with varnish, they con- FiG. Longitudinal Beciion Eye.âFrom, f'owan. c Facet. h Hair. (â (â Lenses, pip2pi Rods. m Basilar membrane. u Optic nerve. eluded that vision with these simple eyes is very indistinct, though by them the insect can distinguish light. Some have thought that these simple eyes were for vision at slight dis- tances. Lubbock, Forel, and others, are doubtless correct in the view that the ocelli are for near vision, and for use in dark. 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 Cook, Albert John, 1842-1916. Chicago, Ill. , George W. York & company
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbees, bookyear1904
