. Beekeeping; a discussion of the life of the honeybee and of the production of honey. Bees; Honey. The Life of the Individual 97 second day, a thickening appears on the convex side, and, on the anterior end (larger end) of the egg, the first indica- tions of the future appendages are soon visible (Fig. 51, a and b). These consist of the rudiments of the antennae (Ant) and mouth parts (mandible, Md and maxillae, IMx, SMx) on the head and of the three pairs of legs {IL, 2L, SL) on the thorax. These rudiments are simply sUghtly rounded swellings which are at first smaller toward the posterior en
. Beekeeping; a discussion of the life of the honeybee and of the production of honey. Bees; Honey. The Life of the Individual 97 second day, a thickening appears on the convex side, and, on the anterior end (larger end) of the egg, the first indica- tions of the future appendages are soon visible (Fig. 51, a and b). These consist of the rudiments of the antennae (Ant) and mouth parts (mandible, Md and maxillae, IMx, SMx) on the head and of the three pairs of legs {IL, 2L, SL) on the thorax. These rudiments are simply sUghtly rounded swellings which are at first smaller toward the posterior end of the egg, since development progresses from the an- terior end. The embryo shows at first no division into SUGl. Fig. 51. — Three stages in the development of the embryo. head, thorax and abdomen, but the fate of the various swellings must be determined by following them through. The rudiments of the stigmata (Sp, openings of the tracheal system) appear early and the first evidence of the silk glands (SlkGl) becomes visible about the same time just behind the second maxillae. The first external indication of the nerv- ous system is in two pairs of swellings {Br) on the upper side of the head. Even in this early stage, a number of important organs are already 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 Phillips, Everett Franklin, 1878-1951. New York, The Macmillan company; London, Macmillan & co. , ltd.
Size: 2076px × 1204px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectbees, bookyear1915
