Probably the best and simplest fly killer is a weak solution of formaldehyde in water (two teaspoonfuls to the pint). This solution should be placed in plates or saucers throughout the house. Ten cents' worth of formaldehyde, obtained in the drug store, will last an ordinary family all summer. Don't smell formaldehyde in the pure state; it is very pungent and strong. In the solution of the strength used for flies it has no offensive smell. It is fatal to disease organisms, and is practically non-poisonous except to insects. Flies will not stay in the house when this solution is around. Moths.--Late spring and early summer is the time to guard against moths and beetles. Many of these fabric-destroying insects are brought into the house on flowers. May and June are especially bad months, as both moths and beetles are only dangerous to fabrics in their young or grub stage. These insects will destroy almost anything from coarse rugs to the finest of ball gowns and dress suits. Carpets that are rarely swept and garments that are seldom disturbed are most liable to damage. The substitution of the frequently removed and easily cleaned rugs for carpets will greatly lessen the danger from the destructive moth and beetle grubs. Carpets laid on tight floors are much less liable to injury than where numerous cracks furnish safe retreats for the insects. Tarred paper under a carpet is an excellent preventive. All clothes presses should be thoroughly cleaned at frequent intervals. The garments should be removed, aired and vigorously brushed. Any larvae which are not dislodged in this way should be destroyed. It is a bad plan to keep odds and ends of woolen or other materials in attics where these pests can breed and thus spread to more valuable articles. Spraying with benzine two or three times during hot weather is a good way of preventing injury to furniture or carriage upholstery and other articles which are in storage or not in use for a long time. If you are certain that woolens and furs are free from the pests they may be stored in safety by placing them in tight paste board boxes and sealing the covers firmly with gummed paper. Both moths and carpet beetles are harmless at a temperature of 40 degrees Fahrenheit--a fact very well known to advantage by the large fur storage companies. They cannot survive furthermore a temperature of 120 decrees if subjected to it for about twenty minutes. What Physicians are Doing.--It is desirable that the ordinary non-medical individual should know what the science of medicine is doing and what it is accomplishing.