Regeneration . Fig. 4. — A-E. Plana7-ia maailata. A. Normal worm. B, E^. Regeneration of anterior , Ci. Regeneration of posterior half. D. Cross-piece of worm. Z?i, ZJ^, Z53^/)4. Regenera-tion of same. E. Old head. iJi, E^, E^. Regeneration of same. F. P. lugiibris. Old headcut off just behind eyes. F^. Regeneration of new head on posterior end of same. from the head. In these planarians the results are somewhat com-plicated, owing to the old part changing its form, especially if thepiece is not fed; but the main facts are given above, and a morecomplete account of the changes that occur
Regeneration . Fig. 4. — A-E. Plana7-ia maailata. A. Normal worm. B, E^. Regeneration of anterior , Ci. Regeneration of posterior half. D. Cross-piece of worm. Z?i, ZJ^, Z53^/)4. Regenera-tion of same. E. Old head. iJi, E^, E^. Regeneration of same. F. P. lugiibris. Old headcut off just behind eyes. F^. Regeneration of new head on posterior end of same. from the head. In these planarians the results are somewhat com-plicated, owing to the old part changing its form, especially if thepiece is not fed; but the main facts are given above, and a morecomplete account of the changes that occur will be given in anotherplace. LATERAL REGENERATLON Not only does regeneration take place in an antero-posterior direc^tion, but in many animals also at the side. The regeneration of thelimb of the salamander is, of course, a case of lateral regeneration in GENERAL INTRODUCTION II relation to the animal as a whole, but in a longitudinal directionin regard to the limb itself. Lateral regeneration of the limb
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1901
