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. The embryology of the honey bee. Honeybee; Bees. THE EMBRYOLOGY OF THE HONEY BEE 53 ]0(: B. / m Fig. 23. Longitudinal (saggittal) sections, through the anterior region of the germ band, Stage VI, showing segmentation. A is a section along the mid-line, B is laterad of the mid-line. The mesoderm is here now divided into two layers, x 387. at the anterior end of the germ band and progresses backward, following the rule for arthropods in general. Figure 22A il- lustrates a median sagittal section of Stage V through that por- tion of the middle plate lying just behind the anterior mesenteron rud
. The embryology of the honey bee. Honeybee; Bees. THE EMBRYOLOGY OF THE HONEY BEE 53 ]0(: B. / m Fig. 23. Longitudinal (saggittal) sections, through the anterior region of the germ band, Stage VI, showing segmentation. A is a section along the mid-line, B is laterad of the mid-line. The mesoderm is here now divided into two layers, x 387. at the anterior end of the germ band and progresses backward, following the rule for arthropods in general. Figure 22A il- lustrates a median sagittal section of Stage V through that por- tion of the middle plate lying just behind the anterior mesenteron rudiment. Four segments are very plainly visible, much more so than is usual. Figure 22B is taken from the same series and passes laterad of the median plane through one of the lateral plates. It shows very distinctly the segmentation of the future ectoderm, four segments being also represented. The segments are not however always sharply marked off from one another in either the lateral or median plates and are frequently somewhat irregular. After the middle plate becomes overlaid by ectoderm its lateral. 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 Nelson, James Allen. Princeton : Princeton University Press
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectbees, bookyear1915