s&h 039

39

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it to fil ter tlmmgli tlić nose, in tlić way in wliioli it is intemled.

Remembor also that sunlight is a great purifier, and that there is no better combina-tion than that and fresli air.

[f you use your sleeping-room as a living-room, see that it is tlioronghly ventilated crery morning, if you want to avoid liead-aches and generał ill health.

Wheu you are in a room at night and there is a light lnirning, and that light is eithcr gas or a lamp. you shoulcl know that it consumes moro oxygen than lialf a dozen persons, and there should be morę ventila-tion than i)i the same room in the daytime.

In another part of tliis work there is a system of hreathing exereises whieh hare heen proyen to he exeellent for generał use, and the attention of the pupil is direeted to them. Regin easily at first and don‘t at-tempt to do too mueli at firsl, for your lungs may rebel at the unusual strain.

Practiee them eautiously until you know