American journal of physiology . s to be noticed first that out of threehundred and twenty-five experiments, noneare directly plus, and only seven are directlyniinus. Sixty-eight advances (21 per cent)are continuations of the indifferent path, a high proportion whenone considers the tendency of this species to be deflected from astraight course by objects with which it comes in contact.^ Twenty(6 per cent) are diagonally plus, while a majority of all the reac-tions are diagonally minus, ^—^ two hundred and thirty out of threehundred and twenty-five (71 per cent). Adding the directly neg-ative
American journal of physiology . s to be noticed first that out of threehundred and twenty-five experiments, noneare directly plus, and only seven are directlyniinus. Sixty-eight advances (21 per cent)are continuations of the indifferent path, a high proportion whenone considers the tendency of this species to be deflected from astraight course by objects with which it comes in contact.^ Twenty(6 per cent) are diagonally plus, while a majority of all the reac-tions are diagonally minus, ^—^ two hundred and thirty out of threehundred and twenty-five (71 per cent). Adding the directly neg-ative and diagonally negative, there is a total of two hundredand thirty-seven generally negative reactions, against twenty in agenerally positive direction. It thus appears that under these con-ditions, with the course not determined, A. foetida has a negativereaction. It is to be particularly noticed, however, that of the two hundredand thirty-seven negative responses only seven are directly away from ^ See section on Figure 7. Ov the Movements of the Earthworm. 475 > . CO CO ^ t^ s COCO o CO CN CJ ly. ro \o o COCO + % O CO o CO = o —1 o o - o - eg o CO t^ + o o o o o o o o o o o o o o o _l_ -f u-. -- ro ro LT. CO t- ^ CO CM -^ CO + o o o O O o (TJ o o o - - ly^ - o -^ CO -- o o o -^ ^ -^ CO CO 1 o o o o - o o - o - - - ^o + o o o O o o o o o o o o o 1 CO ro ro fO W-1 CO ^ ro lo lO fo CO lO ^ + (M O CO o o - o - o o o o o \o = -^ CO O CO o - -^ - o o CO ro o CO i-H 1 o o o o o o o o o o o O o o + o o o o o o o o o o o o o o ONJ5 1 ro LO CO W-; ro Th fo Lr, -t- w~> CO rh CO CO + O o o o O o o o o o ro O o fO = (M o ro o CO -^ CO o -^ o O -^ CO t- 1 O o O o o o o o o o O o o ^ + O o O o o o o o o o O o o o 1 -^ ro CO ro -. lt; yr. CO CO u-^ •* CO -^ t-— + o O o O o o o - CO o o o o CO = - CO fO CO o o o CO 1—1 o o CM o CO J o o o o o o o o o o - o 1—1 CO + o o o o o o
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