Central connections of the optic nerves
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Peter Johnston, J. ;Gardner, Ernest
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Article
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1959
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John Wiley and Sons
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English
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Some years ago Walls ('42) pointed out that mammals with pure-cone retinae apparently occur only in the family Sciuridae, and that in this family, grouncl squirrels arc tlie most strongly diuriial. In spite of the obvious advantages of using these animals for studies of vision, little experimental w