A Practical Physiology: A Text-Book for Higher SchoolsBlaisdell, Albert F. (Albert Franklin)
Science
A Practical Physiology: A Text-Book for Higher Schools
Blaisdell, Albert F. (Albert Franklin)
Human physiology; Physiology
[42] According to the Annual Report of New York State Reformatory, for
1896, drunkenness among the inmates can be clearly traced to no less
than 38 per cent of the fathers and mothers only.
Drunkenness among the parents of 38 per cent of the prisoners in a
reformatory of this kind is a high and a serious percentage. It
shows that the demoralizing influence of drink is apt to destroy
the future of the child as well as the character of the parent.
“There is a marked tendency in nature to transmit all diseased
conditions. Thus the children of consumptive parents are apt to be
consumptive. But, of all agents, alcohol is the most potent in
establishing a heredity that exhibits itself in the destruction of
mind and body. There is not only a propensity transmitted, but an
actual disease of the nervous system.”—Dr. Willard Parker.
[43] “It is very certain that many infants annually perish from this
single cause.”—Reese’s _Manual of Toxicology_.
[44] If an eye removed from its socket be stripped posteriorly of the
sclerotic coat, an inverted image or the field of view will be seen on
the retina; but if the lens or other part of the refractive media be
removed, the image will become blurred or disappear altogether.
[45] This change in the convexity of the lens is only a slight one, as
the difference in the focal point between rays from an object twenty
feet distant and one four inches distant is only one-tenth of an inch.
While this muscular action is taking place, the pupil contracts and
the eyeballs converge by the action of the internal rectus muscles.
These three acts are due to the third nerve (the motor oculi). This is
necessary in order that each part should he imprinted on the same
portion of the retina, otherwise there would be double vision.
[46] The Germans have a quaint proverb that one should never rub his
eyes, except with his elbows!
Public-domain text, read in full here on John Shaqi.
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