The Influence of the Position of the Cut upon Regeneration in Gunda Ulvae . Fig. and 2. Fragment ACC, 20 days. A longitudinal section through a heteromorphic form is shown in fig. rounded shape of the section is due to the contraction that takesplace when the animals are dropped into the fixing fluid. It can be seenin the section that about one-third of the complete brain is present. Twowell-marked nerves run to the new eyes, and the portion of regeneratedgut in the new head shows a beginning of the formation of the three branchescharacteristic of the front end of the gut of G. ulv
The Influence of the Position of the Cut upon Regeneration in Gunda Ulvae . Fig. and 2. Fragment ACC, 20 days. A longitudinal section through a heteromorphic form is shown in fig. rounded shape of the section is due to the contraction that takesplace when the animals are dropped into the fixing fluid. It can be seenin the section that about one-third of the complete brain is present. Twowell-marked nerves run to the new eyes, and the portion of regeneratedgut in the new head shows a beginning of the formation of the three branchescharacteristic of the front end of the gut of G. ulvce. The gut is full of adark brown mass of broken-down tissue, and can be seen clearly in thewhole specimens. E. Regeneration of Nervous System, In planarians, is,, in P. torva (Flexner (3) and Schultz (7) ) and Planaria{Dendroccelum) lactea (Schultz (7)) the new nervous system arises by cellsfrom the parenchyma crowding round the cut ends of the nerve cords andpushing up among the old nerve fibres, aided possibly by some outgrowthof the old fibres. This is also the meth
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectproceed, bookyear1914
