Show rules for tho care of the ayos dr I P lincoln when writing reading drawing aeling etc always tike caro the room la comfortably cool arid the feet warm there i nothing tight about the neck there is plenty of light without dazzling the eyes j the sun does not shino directly on tha object we amaat work upon the light does not from in front it is heat when it comes oscr the left shoulder the head is not very much bent over work the page is nearly lar to the line of sight that is that the boyels nearly opposite the middle of the page for an object hold slant ing is not seen so clearly that the page or object is not more thau fifteen indies from the eye in any case avoid fine nee dle work drawing of fino maps and all such work except for very short tasks not o exceeding liala an hour each and in the coining mo ining when the eyes have aay defect atter study or write befaro breakfast by bandla light do net lie down when reading if your eyes are aching from fire light from looking at alie snow from overwork or other muses a pairoh colored classa may be advised to bo bied for a while light bauo or gray aih blue is the bet shade but those glasses are likely to be abused aud usually are not to be worn except under advice almost all persons who continue to wear delored glaw having perhaps received to wear them from fedij raw would b better without them traveling benders venders of spectacles are not to be trusted their ware are apt to be recommended a indiscriminately as in the limn of the vicar of wako field if you have to hold the pages of harpers Magit nearer than fifteen inches in to read it easily it is that you aro quite near Bihl fd if you have to hold it two or three fact aay you see it daiy you are probably pio bably far in ciller case it is very de to a before getting a pair for a misfit may injure your eye ean eliy tricks with the eyes as squinting or rolling alio eyes are effina troublesome blieu the stomach is out of order avoid reading or sewing by twilight r bhea debilitated by recent illness especially fever or in the cae 01 romeu by livery to have ft cutting out bablo to lier wark oa in baich a phaoe with reference to the line of vision ag o make il possible to exorcise exor cisa a celoso scrutiny without bending the licad or figure much forward it is indispensable in all forma of labor requiring the of vision for objects that the worker should rise irom hiis task now and then tako a few deep inspirations with closed mouth cli the frame out into tho biest erect posture throw lie backward and forai ward if possible po sible step to a window to jhc thc drieu airle only for a moment two desks or tale sni r om are valuable for a student one to stand at the other to sit at |