. Bees & bee-keeping; scientific and practical. A complete treatise on the anatomy, physiology, floral relations, and profitable management of the hive bee. Bee culture; Bees. DSF. DSB Fig. 29.—Section of Wings (Magnified Twelve times), to Explain how Flight is Directed. aw, Anterior Wing; piv, Posterior Wing; en, Costal Nervure; p, Plait; h, Hooklets ; c, Air Currents ; H, Position of Head; A, Position of Abdomen ; DSF, Down Stroke, Flying Forward; DSB, Down Stroke, Flying Backwards. yet they subserve other purposes, by adaptations which cannot fail to strike us as unspeakably beautiful.
. Bees & bee-keeping; scientific and practical. A complete treatise on the anatomy, physiology, floral relations, and profitable management of the hive bee. Bee culture; Bees. DSF. DSB Fig. 29.—Section of Wings (Magnified Twelve times), to Explain how Flight is Directed. aw, Anterior Wing; piv, Posterior Wing; en, Costal Nervure; p, Plait; h, Hooklets ; c, Air Currents ; H, Position of Head; A, Position of Abdomen ; DSF, Down Stroke, Flying Forward; DSB, Down Stroke, Flying Backwards. yet they subserve other purposes, by adaptations which cannot fail to strike us as unspeakably beautiful. In Fig. 28 we observe that the up and down move- ments of the stick are wider in range than that of the paper, and that its motion decreases as we pass from right to left; similarly, in Fig. 29, where the cross section of the two locked wings is given, at DSF (representing the position at the down stroke when flying forwards) we must note that the large wing has a more extended beat than the smaller, since the latter is the equivalent of that part of the paper. 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 Cheshire, Frank Richard, 1833?-1894. London, L. U. Gill
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbeec, booksubjectbees
