Air

           Our latrines are perhaps most responsible for rendering the air impure. Very few people realise the serious harm done by dirty latrines. Even dogs and cats make with their claws something like a pit wherein to deposit their faces, and then cover it up with some earth. Where there are no lavatories of the modern approved types, we should also do likewise. There should be kept ashes or dry earth in a tin can or an earthen vessel inside the latrine, and whoever goes into the latrine should, on coming out, cover the faces well with the ash or the earth, as the case many be. If this is done there would be no bad smell, and the flies too will not settle on it and transmit the filth. Anybody whose sense of smell has not been wholly blunted, or who has not grown thoroughly accustomed to foul smells will know all filthy matter which is allowed to lie open to the weather. Our gorge rises at the very thought of faces being mixed with our food, but we go on inhaling the air which has been polluted by such foul smell, forgetting the fact that the one is just as had as the other, except that, while the former is visible, the latter is not. We should see that our latrines are kept thoroughly neat and clean.

           We abhor the idea of our cleaning the latrines ourselves, but what we should really abhor is the idea of making use of dirty latrines. What is the harm in ourselves removing the filth which has been expelled from inside our own body, and which we are not ashamed to have removed by other? There is absolutely no reason why we should not ourselves learn the work of scavenging and teach it to our children as well. The filthy matter should be removed, and thrown into a pit two feet deep, and then covered up with a thick layer of earth. If we go to some open place, we should dig a small pit with our hands or feet, and then cover it up, after the bowels have been we also make the air impure by making water at all places indiscriminately. This dirty habit should be given up altogether. If there is no place specially set apart for the purpose, we should go to some dry ground away from the house, and should also cover up the urine with earth. 

         The filth should not be cast into very deep pits, for, in that case, it would be beyond the reach of sun's heat, and would also pollute the water flowing underneath the earth. 

         The habit of spitting indiscriminately on the verandahs, court yards, and such like places is also very bad. The spittle, especially of consumptives, is very dangerous. The poisonous germs in it rise into the air, and, being inhaled by other, lead to a spread of the disease. We should keep a spittoon inside the house, and if we have to spit when out on the road we should spit where there is dry dust, so that the spittle may be absorbed into the dust and cause no harm. Doctors hold that the consumptive should spit into a spittoon with some disinfectant in it: for, even if he spits on dry ground, the germs in his spittle manage to rise and spread into the air along with the dust. But, in any case, there can be no please is dirty as well as dangerous.

         Some people throw where they like cooked food and other articles, which decay and render the impure. If all such rubbish be put underground, the air would not be made impure, and good manure, too could be obtained. In fact, no kind of decaying matter should be allowed to lie exposed to the air. It is so easy for us to rake this necessary precaution, if only we are in earnest about it. 

          Now we have seen how our own bad habits render the air impure, and what we can do to keep in pure. Next shall consider how to inhale the air. 

          As already mentioned in the last chapter, the air is to be inhaled through the nose, and not through the mouth. There are, however, very few persons who know how to  breathe correctly. Many people are in the pernicious habit of inhaling though the mouth. If very cold air is inhaled through the mouth, we catch cold and sore throat. Further, if we inhale through the mouth, the particles of dust in the air go into the lungs and cause great mischief. In London, for instance, in November, the smoke which issues from the chimnies of great factories mixes with the dense fog, producing a kind of yellew mixture. This contains tiny particles of soot, which can be detected in the spittle of a man who inhales through the mouth. To escape this, many women (who have not learnt to breathe through the nose alone) put on a special kind of veil over their faces, which act as sieves. If these veils are closely examined, particles of dust can be detected in them. But God has given to all of us a sieve of this kind inside the nose. The air which is inhaled through the nostrils is sifted before it reaches the lungs, and is also warmed in the process. So all men should learn to breathe through the nose alone. And this is not at all difficult, if we remember to keep our mouth firmly shut at all times, except when we are talking. Those who have got into the habit of keeping their mouth open should sleep with a bandage round the mouth, which would force them to breathe through the nose. They should also take some twenty long respiration's in the open air, both in the morning and in the evening. In fact, all men can practice this simple exercise and see for themselves how rapidly their chest deepens. If the chest be measured at the beginning of the practice, and again an interval of two months, it will be seen how much it has expanded in this short period.