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Essentials of Refraction

How to Fit Glasses

By THOMAS G. ATKINSON, M. D.
AUTHOR OF APPLIED PHYSIOLOGY

Why should people be encouraged to go to the specialist to be fitted with glasses?

PEAC TION

WHY SHOULD NOT THE PHYSICIAN DO THE WORK HIMSELF, EARN THE FEES, ADD LARGELY TO HIS INCOME AND EXTEND HIS PRESTIGE AND REPUTATION?

TO LEARN HOW TO FIT GLASSES is not difficult, but it does require some practical and scientific knowledge, and it is this essential information that Dr. Atkinson's book gives with a clearness, conciseness and discrimination born of long experience as an eye specialist, of intimate practical knowledge of his subject, and of eminent skill as a writer.

NO OTHER BOOK GIVES SO MUCH on the subject, it is believed, in so few words or will enable the student to do good work with so little preparatory effort and experience.

The simplicity and directness of the story of

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The Eye as an Optical Instrument-its parts
and the functions of each.

Refraction of the Eye. Varieties of and
Reasons for Defective Vision,
Lenses-their Purpose, Forms and Charac-
teristics.

Accommodation and Convergence-how the deficiency in vision is corrected by glasses. 7, 8. Use of Reinoscope and Ophthalmoscope. 9, 10, 11. Correction of the Various Forms of Defective Vision. 12.

Practical Instructions in Fitting Glasses. 13, 14, 15, 16, 17. Diseases of the Eye and Hygiene.

Every chapter is profusely illustrated, the engravings being from drawings by the author and of an original and singularly graphic type. 235 Pages, 52x8 in. Attractively Bound in Full Cloth, $1.25 Net.

G. P. ENGELHARD & CO., Publishers. 536 S. Clark St., CHICAGO

includes cases in which diarrhea is the main symptom. In the first group the achylia is the expression of a general neurosis and the treatment must be directed to the nervous system with moderate, appropriate attention to the stomach.

In the second group, in which the gastric symptoms predominate, the food is prepared sufficiently so as not be a burden to the intestines mechanically, and must be of a nature to depend least on stomach digestion and at the same time not irritate the small intestine. When the gastric symptoms are very distressing it is necessary to keep the patient on warm milk, cream, and yolks of eggs for the first four or five days, then gradually progress to thin cereals prepared in milk, toast, and butter up to the end of the first week, while the patient remains in bed. When the symptoms have considerably diminished we can add bouillon with egg, beef soup, mashed potatoes with butter, as this is the vegetable best borne, and then spinach, asparagus tops, string beans, etc., all passed through a puree sieve. During the second week, two or three eggs may be given daily, and cereals in the form of light puddings or custard. It the patient is fairly comfortable, noodles and macaroni may be added. With meat we should begin gradually with it finely scraped or chopped and well done. Spices and alcoholic beverages are not allowed. The dietetic mode of life for a great length of time of an achylic patient who is subject to gastric symptoms should be: Three-quarters of an hour before breakfast 250 c. c. of hot water, to which half a teaspoonful of sodium chlorate is added. Breakfast: orange juice or grape fruit, eggs in any form except hard boiled, cocoa, light coffee or tea, graham bread or rolls with butter. Two or three times a week replace eggs with cereals, mashed potatoes, noodles, macaroni, or cream cheese. Dinner: grape fruit or caviar or anchovies, sardines as appetizers, bouillon, beef soup, or well prepared vegetable soup mildly spiced. Fish, chicken, lamb, veal, cooked ham, calf's brain, fresh sweetbread, or steak, well done, finely chopped and mildly spiced with onions, salt, and pepper, can be given, but must be thoroughly chewed. The vegetables named above, a cereal or noodle pudding or omelette, or prune souffle and cooked fruit. At 4 p. m., one cup of buttermilk with zwiebach or toast and butter. Supper: like breakfast with addition of cooked fruits and buttermilk instead of the coffee. Medicinally HC1 and pepsin, ten parts of each in a hundred parts of water, a teaspoonful in a glass of water should be taken before and during the meal.

In the third group of cases, in which diarrhea is the main symptom, the treatment must be individualized, but patients who have not signs of

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