| http://www.w3.org/ns/prov#value | - He claimed to have support for this theory from the results of his own experiments,<ref name=BatesChap4>{{cite book | last=Bates | first=William H. | title=Perfect Sight Without Glasses | year=1920 | chapter = Chapter 4: The Truth About Accommodation as Demonstrated by Experiments on the Eye Muscles of Fish, Cats, Dogs, Rabbits and other Animals | pages=38–53 | publisher=New York: Central
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