Regeneration . Fig. 53. — After Joest. A. Small piece of AUolobophora terrestris from posterior end grafted uponanterior end of another individual. Oral end free. Four weeks after grafting eight newsegments formed. B, Same fourteen days later. A new part of thirty-seven segments hadappeared at end of former eight segments. C. A piece of the body wall of AUolobophoraterrestris grafted upon the cut-end (anterior) of Lumbricus rubellus. Two months later, asshown in figure, a head had grown on major component. D. Anterior and posterior ends ofA. terrestris united to make a short worm. E. A piece o
Regeneration . Fig. 53. — After Joest. A. Small piece of AUolobophora terrestris from posterior end grafted uponanterior end of another individual. Oral end free. Four weeks after grafting eight newsegments formed. B, Same fourteen days later. A new part of thirty-seven segments hadappeared at end of former eight segments. C. A piece of the body wall of AUolobophoraterrestris grafted upon the cut-end (anterior) of Lumbricus rubellus. Two months later, asshown in figure, a head had grown on major component. D. Anterior and posterior ends ofA. terrestris united to make a short worm. E. A piece of body wall of A. cya7iea graftedon side of body of Lumbricus rubellus. F. Piece of /.. rubellus grafted on side of body ofanother individual to produce a double-tailed worm. containing only three segments are not capable of independent exist-ence, except for a short time, and even pieces of from four to eightsegments die in most cases. It is not possible to unite small piecesof this size directly upon larger
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1901
