52 Accommodation: Experiments on Animals |
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trical stimulation of either or both produced accommoda tion just as before the atropine had been applied. This experiment, which was performed repeatedly for more |
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Fig. 23. Pithing a Fish Preparatory to Operating Upon
Its Eyes
The object of this operation is to secure greater relaxation of the muscles of the eyes and head, which would work for hours, without external stimulus, if the brain cells were not destroyed by the probe. |
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than an hour by alternately applying and removing the atropine, not only demonstrated clearly what had not been known before, namely, that the fourth nerve is a nerve of accommodation, but also demonstrated that the |
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