Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 506
defects to which it is liable; and of its wonderfully 454 SIGHT. refined physiological elements—that a branch of science sufficiently exten-sive to require a large part of a studious lifetime for its complete masteryhas grown up under the hands of modern physiologists, physicists, andpsychologists.… … Fig. 234.— Vertical Section of the Eye. THE form of the human eye and the general arrangement of its parts may-*- be understood by referring to Fig. 234, which is a section of the eye-ball. It has a form nearly globular, and is covered on the outside by a toughfirm case. A, named the sclerotic…
Inventions
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