T KY Teikoku Daigaku Rika Daigaku Kiy Volume 4

T KY Teikoku Daigaku Rika Daigaku Kiy Volume 4

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 edition. Excerpt: ...part; and the body shewed a sudden increase of breadth just anterior to the anterior end of the ovary, looking as if this part were bandaged. I have used the utmost care in detaching the worms from the gill, inasmuch as I carefully scraped off the gill.slime with a spatula, avoiding as much as possible any direct contact with the worms. The Diporpae in question were observed to be quite independent of each other from the moment they were detached from the gill; nor have I been able to detect any mechanical injury, or the notch by which they might have been united to each other; so that the chunce of their being detached Diplozoon is, I believe, almost entirely excluded. Such a case of isolation is of course exceptional; but it shews that the Diporpa can, under certain conditions, become mature without uniting with another Diporpa. It would have been interesting and instructive could I have determined where, in this abnormal case, the vas deferens opened. But unfortunately, owing to my inexperience then, I killed both the Diporpae under the pressure of a cover-glass and prepared them for o.ross mounting; and when I afterward cut one of them into sections, 1) Zeller--1. c. p. 176. 2) Tlie size of the common Diporpa vai ies according to its stage of development. Dutardin gives it as 0.26--0.56 mm. in length and 0.1S--0.35 mm. in breadth (1. c. p. 317). A specimen of the Diporpa of Dipl. panipoxum ient me by Prof, ltiina and possessing three pnirs of suckers measured about 0.6 mm. in lengt h. That of Dipl. uipponicmu of the same stage is of about the same size. I could no longer trace the course of such a delicate canal as the vas deferens. Remark i--In Prof. Ijima's manuscript I find the following passage which I have his permission to...show more

Product details

  • Paperback | 90 pages
  • 189 x 246 x 5mm | 177g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236777492
  • 9781236777492