| Show scientific FIC miscellany some remarkable observations on she longevity of terms germs in dust have been recorded by dr miguel a french bui biologist logist in 1881 some earth was swen from a depth of ten inches in park dried for two days at in 90 degrees C and then put away in a corner of the laboratory first being beine hermetically sealed in tubes on recently opening the tubes after sixteen years it was found that the dust stul contained microbes mic robes per wai nine me the original number in the moll having been but per samme which the drying reduced to ile lea than from the surviving bacteria the tetanus microbe was isolated ed and so ao wonderful was its vital fr that it caused death in guinea pigs after an incubation period of two days the stomach movements of a cat have been studied by dr W C can cwm mn by means of roentgen rays of bismuth mixed with the food caused the wavelike wave like movements of ae pyloric portion of the stomach to become clearly visible about 2600 of the waves being counted during the serven even hours a cat was digesting soft bread A frenchman M blennard SOBS the X rays for measuring the adulteration of flour with chalk and and comparing the shadows of the ample under investigation and of otters of known adulteration it is s to determine the proportion of foreign matter when as small as three V aw cent curious effects of a magnetic field upon electric discharges have been de by a german electrician an amm af between a ring of carbon and a am concentric centric rod red of carbon may be made to the spin round rapidly idly and EL a comet uke appendage may be made to re volve round the cathode in an egg discharge calcium carbide finds a new application in in the treatment of the black rot ot of stapes M G rodler having discovered that sprinkling the men green grapes cwb aft thie substance to is effective the sounds produce dJay tapping the of the body with the finger ate are dull it if EL a compact organ like the japart Ja eart or liver is beneath but sonorous it the organ is light and full of gas like the lungs or stomach to enable the ordinary ear to detect the character of these sounds when their difference is slight blight drs blanchi blanch and bazzi have der a new apparatus called the this so magnifies the sound that the physician is able to trace the outlines of the organs rest fair against the external envelope of othe the body and to mark them in chalk upon the skin the organs are heard in a living and moving state they are in perpetual motion and their position ana shape are not those seen in the cadaver but are continually changing according to the position and condition of the body abnormal condition as well as a size eize of the organ may be indicated pneumonia for instance giving a dull sound to the lung digestion may be studied as never before and dra drawings ot the stomach by means of the he pho have already shown by br the varying distension that liquids pass pa much more slowly from that orsan than was formerly supposed and asiat dyspeptics should drink ordinary water with little of the beverages beverage sach ach as an seltzer water and beer that chand d the stomach by gas variegated plants of almost any may be produced in the belief idof of a german geirman botanist by grafting upon that chat species a nearly allied fori conn having g co colored ildred leaves E experiment ariment has ft moreover that the shoots hoots of is a green species that has been grafted with a variegated one mil be variegated A green plant of lapense on which a variegated abu tion had been grafted produced variegated shoots below the graft while a green plant of grafted on a variegated var legated became variegated and gilve gave vigorous cuttings which remained variegated when grown A mixture of acetylene with oil gas in the proportion of one to three has been adopted on the prussian state railways for lighting oars experiments have proved the mixture to be safe with much greater illuminating power than oil gas alone and it can be used without any change in the gas holders or burners now employed incandescent lighting at a third of its present cost Is promised if the possible improvement suggested by prof bernst of gottingen rottingen Got should prove to be practicable instead of carbon filaments he uses rods of chalk magnesia and kaolin which are remarkable for the large proportion of visible light rays in their radiation no matter by what means the materials are raised to a high temperature pera ture the lime light and the Wels back incandescent gaslight are based on this principle the materials slightly warmed beforehand to diminish their very great resistance can be raised to a high temperature electrically alternating currents being used I 1 to lovvold avoid electrolytic action on the material it remains to be seen whether there are difficulties in operating lamps of this kind that cannot be overcome the sussman accumulator which feeds a portable electric lamp lately described at the mining school of liege is a dry storage battery the plates are covered with a layer of lead oxide formed into paste with a weak solution of india rubber and sulphate of ammonia and in place of a liquid electrolyte is used a paste of filter paper reduced to a dry powder or cellulose formed into SL plastic mass this to is saturated with at sulphuric acid and aled in between the plates aluminum to Is plated with copper by welding jn in the process of herr a german engineer it is claimed that the plated sheets can be soldered grooved tinned and that thlire la Is no separation in even the thinnest sheets when rolled or drawn and that all objections to the use of aluminum are thus overcome A new paint for ships bottoms has for its chief constituent seaweed which green grean and wet is ground in oil and then mixed with lead acetate turpentine and linseed oil previously well boiled together thip is claimed to solve the problem of preventing shells and seaweeds from adhering to the vessel the expedition of major gibbons gib bons to cross africa from caa cape town to C cairo will have aluminum launches that may be separated into sections for carrying |
