The anatomical record . s effected by the constriction of the nucleus across itslongitudinal axis, thus making the nucleus show a bilobed con-dition. More rarely, in the case of long, slender nucleus, con-striction may take place at more than two different places inthe nucleus, and in that case the latter shows multilobed ap-pearance. Nucleoli and chromatin grainiles are apparentlyevenly distributed throughout the nucleus, and neither of themseems to behave unusually during the process. NUCLEAK DIVISION ADIPOSE CELLS 83 In tlic tliird stage larva, one may notice the fact that someof the ce
The anatomical record . s effected by the constriction of the nucleus across itslongitudinal axis, thus making the nucleus show a bilobed con-dition. More rarely, in the case of long, slender nucleus, con-striction may take place at more than two different places inthe nucleus, and in that case the latter shows multilobed ap-pearance. Nucleoli and chromatin grainiles are apparentlyevenly distributed throughout the nucleus, and neither of themseems to behave unusually during the process. NUCLEAK DIVISION ADIPOSE CELLS 83 In tlic tliird stage larva, one may notice the fact that someof the cells begin to show peculiar spherical granules in thecell-body. As pointed out by Herlese (99), P6rez (02, 10),Henneguy (04), and others, these granules are of albuminousnature, and occur more abundantly in close proximity t(j nucleus,than in the periphery of the cell. They become very abundantat the fourth stage and at the last larval stage almost all of theadipose cells are seen to be hlltd with the granules. The cell-. Fins. 1 to 7 Nuclei of (.ells, representing possible stages of Kigiire G represents type. body becomes larger and larger with the advancing stages of theinsect; ajiparently correlating \\ith this, the occurrence ofnuclear division is seen more and more freciuently, and finally,in old larvae, we find the condition as shown in figure S to bemet with very commonly. Sunmiarizing the facts, we may say that, in the adijiose cell,the luicleus continues to divide amitotically from early in .stage, and the cell stores up albuminous gramiles in itscell-body, commencing the process late in the thinl stage. This 84 WAIUJ . shows tliat the foll-miclci which have undorgoiip amitotic di-vision, without lOKaril to wlicthcr tho cells rcinaiii nmhimiclcatoor not, do not degenerate, and theceils proceed witii their activefunctional processes. This can he more strongly emphasizedbecause we now see the fact that nuc
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
