Arizona weekly enterprise., 1888-08-11
SCIENTIFIC soulas.
Lightning can be seen by reflection di tance of POO miles

tance of 200 miles.
 During the last fifty years the climate has so changed that man can live at an altitude of tenth of a mile higher than before.
 According to Pasteur and Chamberland typhoid bacillus is in ninety y-nine cases out of a hundred communicated through drink ing water
 What may be of great value in ship build ing and watch making is the discovery that steel mixed with 24 per cent of manganese becomes non-nagnetic.
 A Frenchman claims to have invented thermometer so sensitive that it's index needle will defect two inches upon the en trance of a person into the room where it has been placed
 It has been stated that railway trains in England are now driven at an average speed IA per cent higher than it was twenty years ago, with scarcely more than half the quan tity of coal
 A workman in the Carson mint has discov cred that drill points, heated to a cherry red and tempered by being driven into bar of lead, will bore through the hardest steel or plate glass without perceptibly blunting
 According to Chicago philosopher flies are the revivifed'souls of blossoms which fall to the ground, decay and come forth flies There is no such poetry about the origin of the flea, for his mother is sawdust, mainly fine sawdust.
 Sulfonal is the name of new hypnotic used to produce sleep. The average dose in the beginning is fifteen grains, which may be gradually increased to sixty grains. It promises to be especially useful in the treat. ment of mental disorders
 pr. ". A McCorn, of the New York City Asylum for the Insane, has found hyoscy mine, subcutaneously administered, very useful remedy in quieting mania, and at tended with less unpleasant symptoms than are ehloral or the bromides.
 Electricity is to be enlisted in the investi gation of the purity of water The volta meter fails to show any current passing through chemically pure water As saline or acid contamination increases the. con ductivity of the medium grows greater.
 The discovery of electric welding has sug gested the welding together of ends of rails so as to make continuous rails of 1000 to 300 feet in length. The device would save in wear and tear, but would necessitate a special joint to provide for the gap of six or or seven inches which would occur between rails of this length under the ranges Of North American temperature.
 The San Francisco Medical Journal says it is stated that oil of bay is used in Switzerland by butchers to keep their shops free from flies, and that after coat of the oil nas been applied to the walls none of these trouble some pests venture to put in an appearance This remedy has also been tried and found effectual in the south of France in preserving gilt frames, chandeliers, etc, from becoming soifed It is remarked that flies soon avoid the rooms where this application has been employed
 In The London Standard is an account of a German doctors investigations as to the size of mems and wcmen's hearts. The mas culine heart weighs more and is larger than that possessed by the fair sex. A heart, it would appear, grows most quickly during the first and second years of life, and between the second and seventh years it doubles in | size. Until the fftieth birthday the heart still grows a little In childhood the male and female heart are the same size, but after manhood the masculine heart develops much more than the female, and ends by being two square inches larger than the latter.