. Journal of morphology. Fig. 6 Gelastocoris oculatus Fabr. .4, prophase of the first spermatocyte divi-sion showing many yolk granules outside the nucleus and their close resemblanceto chromosomes; B, metaphase plate, first spermatocyte division showing the chro-mosomes in the middle and the granules near the periphery of the cell and alsothe close similarity between the two. X 860. II. THE NUCLEOLUS IN THE YOUNG OOCYTES AND ORIGIN OF THE OVA IN GELASTOCORIS In a recent paper (11) Foot and Strobell describe a chromosojnenucleolus in the oogonial cells of Protenor and also describe theorigin o
. Journal of morphology. Fig. 6 Gelastocoris oculatus Fabr. .4, prophase of the first spermatocyte divi-sion showing many yolk granules outside the nucleus and their close resemblanceto chromosomes; B, metaphase plate, first spermatocyte division showing the chro-mosomes in the middle and the granules near the periphery of the cell and alsothe close similarity between the two. X 860. II. THE NUCLEOLUS IN THE YOUNG OOCYTES AND ORIGIN OF THE OVA IN GELASTOCORIS In a recent paper (11) Foot and Strobell describe a chromosojnenucleolus in the oogonial cells of Protenor and also describe theorigin of the two large idiochromosomes from it at the time ofmitotic cell division. At the time this paper appeared, I wasworking on the nucleolus in the ovaries of Gelastocoris the two forms have some things in common there are severalpoints of divergence. As stated, the nucleolus in Protenor isconfined to the oogonial cells. This is not the case in it appears after the last oogonial division,
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Keywords: ., bookcentury1900, bookdecade1, booksubjectphysiology, bookyear1912
