Practical Lessons in Human Physiology, Personal Hygiene And Public Health, for Schools
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In our eReader you can find the full English version of the book. Read Practical Lessons in Human Physiology, Personal Hygiene And Public Health, for Schools Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Practical Lessons in Human Physiology, Personal Hygiene And Public Health, for Schools
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Such improper positions assumed day after day for a series of years tend to fix the bones of the spine, chest, and shoulders and cause permanent deformity. To obviate all these difficulties schoolrooms should be supplied with single adjustable seats and desks, and then sufficient time taken to adjust the seat and desk of each 1 86 HUMAN PHYSIOLOGY Fig. 104. — An adjustable seat and desk. From a sketch furnished by Dr. Mosher. (Zuppke.) pupil at least once a term. The seat and desk shown here ar...e raised and lowered in the same way as are revolv- ing office chairs.
Besides being ad- justable, a good, comfortable school desk must afford sufficient room for the legs and feet to take easy, natural positions, so as not to cramp the blood vessels in any way. The back 105 Fig. 103. — An adjustable seat and desk as used for writing. From Dr, Mosher's " Hygienic Desks for School Children," Educational Review^ Fig. 106. — Same seat and desk as used for reading.
xiri BONES AND JOINTS 187 of the seat must be so constructed that there is ample room to sit well back on the seat, and at the same time it must furnish a firm support for the loins.
What to read after Practical Lessons in Human Physiology, Personal Hygiene And Public Health, for Schools?
You can find similar books in the "Read Also" column, or choose other free books by John I Jegi to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Such improper positions assumed day after day for a series of years tend to fix the bones of the spine, chest, and shoulders and cause permanent deformity. To obviate all these difficulties schoolrooms should be supplied with single adjustable seats and desks, and then sufficient time taken to adjust the seat and desk of each 1 86 HUMAN PHYSIOLOGY Fig. 104. — An adjustable seat and desk. From a sketch furnished by Dr. Mosher. (Zuppke.) pupil at least once a term. The seat and desk shown here ar...e raised and lowered in the same way as are revolv- ing office chairs.
Besides being ad- justable, a good, comfortable school desk must afford sufficient room for the legs and feet to take easy, natural positions, so as not to cramp the blood vessels in any way. The back 105 Fig. 103. — An adjustable seat and desk as used for writing. From Dr, Mosher's " Hygienic Desks for School Children," Educational Review^ Fig. 106. — Same seat and desk as used for reading.
xiri BONES AND JOINTS 187 of the seat must be so constructed that there is ample room to sit well back on the seat, and at the same time it must furnish a firm support for the loins.
What to read after Practical Lessons in Human Physiology, Personal Hygiene And Public Health, for Schools?
You can find similar books in the "Read Also" column, or choose other free books by John I Jegi to read onlineMoreLess
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