Oculists say that when with the arrival of middle life the focusing power of the eye declines so far that at the usual distance for reading, a sufficient adjusting force no longer exists, it is the preferable thing to put on WEAK MAGNIFYING GLASSES, to take off strain, rather than to postpone their use as long as possible. My own opinion is that when a man can, by sitting with his back to the window and holding a book in the light, at the usual distance from the eye, read the fine print of the newspapers, it is better to avoid wearing magnifying glasses. But we should always be careful to have the light shine on the paper, and not on our eyes when we are reading. Many invalids, especially those who suffer from uterine disease, are distressed to find that they begin to fail to command the services of their eyes. When persons are recovering from any severe illness such as fever, or from protracted exhaustion, or after prolonged lactation, or watching with invalids, or great loss of sleep; where there has been much grief and weeping, or a severe mental strain, or loss of blood, or in severe or chronic dyspepsia, impaired eye power is pretty sure to appear. The essential condition to recovery lies in restoration to vigor, and sound health, and habits. They can probably develop and recover their ocular energy by the graduated use of their eyes, beginning with short periods and advancing by small additions. Ladies that suffer from painful menstruation should not read in bed at the time of the menstrual flow. Weakly persons should not read while lying down; and to them umbrellas, and parasols, and colored glasses become needful as protection from the sun and wind. For such it is hurtful to read in railway cars or in carriages; and to them an atmosphere of smoke, or the air of an ill ventilated, crowded, or brightly lighted room is injurious. For SLEEPLESSNESS the best remedy is to so REGULATE THE BREATHING that it shall induce the right circulation in the brain, and the repose of the faculties. In breathing have the inspirations and expirations of equal length, and it will at least conduce to the repose of the brain. For a SLIGHT ILLNESS all that you need to do very often is to breathe full, so as to make deep inspirations for half an hour; and you can rear healthy children if you can secure to them good round chests. To do this, first measure each of them with a tape; then teach them to practice forced inspiration through the nostrils several times a day; offer a prize for the first inch gained in circumference. Flat chested children will soon grow round and full, and the breathing space large. The result will be good health of the children. A child not more than four years old is sometimes afflicted with DIABETIS; this is usually due to farinaceous food, and the child should be debarred from starchy food and sugar.