Text-book of hygiene; a comprehensive treatise on the principles and practice of preventive medicine from an American stand-point . ontedge of the seat should project a little beyond the near edge of thedesk, so that a plumb-line dropped from the latter should strike theseat near its front edge. If the seat is not thus brought slightlyunder the desk, the pupil is compelled to lean forward in writing,which position prevents proper expansion of the chest and increasesthe blood-pressure in the eyes—a condition promotive of near-sightedness. Seats should be only high enough so that the feet rest f
Text-book of hygiene; a comprehensive treatise on the principles and practice of preventive medicine from an American stand-point . ontedge of the seat should project a little beyond the near edge of thedesk, so that a plumb-line dropped from the latter should strike theseat near its front edge. If the seat is not thus brought slightlyunder the desk, the pupil is compelled to lean forward in writing,which position prevents proper expansion of the chest and increasesthe blood-pressure in the eyes—a condition promotive of near-sightedness. Seats should be only high enough so that the feet rest flat upon 234 TEXT-BOOK OF HYGIENE. the floor. If they are higher, a foot-board must be should not be condemned to the cruelty of having theirfeet dangling between heaven and earth while they keep their and desks should be graded according to the sizes of the pupils—not their ages or standing in the class. An ideal seat and desk would be one made to measure for eachpupil, but this is manifestly impracticable, inasmuch as with theconstant growth of the child the seats would be rapidly Fig. 29.—Adjustable School-desk (Front View). The desk shown in Fig. 291 is adjustable to children of differ-ent sizes, and seems to solve the problem which has so long puzzled theschool sanitarian. The desks are made for a single pupil and theseat and desk are independently adjustable. The frame is of ironand the seat, back, and desk of hard-wood lumber. Blackboards should not be placed at a greater distance than 10metres from the farthest pupil. The ground of the board should bea dead black, without lustre. In writing exercises upon the board,care should be taken that the letters and figures are made sufficientlylarge, and with rather heavy strokes of the crayon, in order thatthey may be easily seen from the most distant part of the room. It S. A. Made by the Rushville School Furniture Company, Rushville, Ind., U. SCHOOL HYGIENE. 235 has recently been
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherphila, bookyear1908
