| Show scientific miscellany some curious experiments have been imported ported te by mr howard swan a london linguist and electrician these have shown that a certain slow moving phosphorescence which under suitable conditions appears in the dark within the eyeball or nerves of the eye is sensitive to sound and is thrown by it int inta various movements which aich are eviden evidently subject to definite laws if the sound Is a word the ascent film tends to form a geometric pattern the old view that the quality of sugar beets depends on the number of developed leaves and the length of life of the plant has been confirmed according to friedrich in a paper to the londen chemical society sugar is in produced in the leaves passing throng fe the leaf stems to the roots the production of sugar depends on the amount of light and the form and position ot of the ledes leaves are of importance yellow light causes the greatest development of roots blue or chemical rays the largest percentage of sugar field experiments have proven that sugar production begins at an early stage in tha leaves but is greatest from the beginning of august to the middle f september the scheme of mr john milne qt ft scattering earth tremor tr mor observatories over the globe is being carried out reci apparatus is to be established at toronto harvard Hax vard philadelphia victoria B C two stations in new zealand batavia madras calcutta bombay mauritius Maurit las cape san fernando kew and probably abr other places from observations last year in seven states reported by prot prof F V H bigelow it appears that stations on the southern end of the appalachian mountains in central georgia or alabama have better prospects of favorable weather for viewing the total solar eclipse ot of may 28 1900 than other places on the eclipse track the question of atmospheres alpon up the planets and satellites of the bolar folar olar system has been investigated theoretically by dr johnstone stoney of tae royal dublin society who has reached some most inter interesting eating results he has ham proven mathematically that the outward motion of the molecules molecule of any of the gases under the highest lunar temperatures would be sufficient to overcome gravitation on ey the he moon which must therefore be left t entirely destitute of an atmosphere the attraction of the earth is insufficient to imprison free hydrogen and helium though supplied in small quantities by br hot springs etc for a like reason has failed to accumulate in our atmos atmosphere phem the calculations show further thia that water vapor cannot be retained by mercury while even nitrogen and oxygen would probably escape into space apace leaving none of the atmospheric constituents of our world except assee M bir argon and carbon id oxide the bof striking conclusions in view of recent recen t speculations concern mars which to found to be incapable of retain lar water and whose atmosphere must consist mainly of nitrogen argon aaa carbon dioxide the colars snows belog bebb frozen carbonic acid and vegetation vege tail and canals as known to us being impossible jupiter from its mass aad aaa rate of rotation can prevent the escape of every gas known to chemists saturn uranus and neptune can imprison any gases more firmly than the earth but may detain helium venus most resembling the earth has an atmosphere mo sphere heavily len laden with water vapor the novel steam generator of mr IT 1 H knight an english engin engineer ber cm co slots of a coil of steel tubing heated m a a suitable furnace irregular steam production and liability to obstruction ter deposits from the water the fusul objections to boilers of this kind taftt batt it is claimed that these theme difficulties mw are overcome by the use of steel balto which move freely in the tube tor for a short distance this checks the flow flew of wa water caterin terin in the lower coils causing the tk steam to come off quietly while constant movement clears away ar ah scale A farming community of habits at saint ouen a suburb of 7 parts paris consists of go 98 families of SU members and is remarkable from the fact that no case of tol among them has been known within all odys memory the people rarely nant alth it bhoge of other sections j infectious df seanes are am those due to the introduction into the body of some producing agent and much confusion arises from the fact that all c contagious alous diseases are infectious wace not all infectious diseases are contagious knowledge gained chiefly during the last twenty years shows us that an essential condition of infection to la that the disease producing agent shall be a living irving organism capable of in the body of the infect e ea individual it matters not says dr GWM ge M whether this living organism la Is large or small her ek it belongs to the animal or v able le kingdom whether it to is lol yn tie the skin a as s in scabies in the aes as in trichinosis in the lym IM as in erysipelas in the solid acera e as aa in amoebic abeels of the 1 la in the intestines as aa in cholera or W DE bag as in relapsing fever the F and of the mr r infectious agent constitutes in f an L A fise aee to is contagious when transmitted ed frosti the th sick to the acy personal A communication or 60 00 contact tact smallpox small pox scarlet fever measles diphtheria influenza etc are I 1 ious diseases which are con 00 luen while malarial fevers ty ever avor yellow fever cholera pneumonia peritonitis etc are infectious cus diseases which are not ordinarily contagious 1 on imbedding bedding im a piece of metal in a of chemically pure aluminum ode thoroughly dried and then sub jeang to a high temperature H bischof Bt of wiesbaden Wies baden has noticed a remarkable retardation of melting A ral of silver which should melt at 1830 degrees P F was solid until 2730 degrees vie a reached and palladium which u uld d melt at 2730 degrees was still I 1 I 1 e ted at 2900 degrees it is ex tv wilned I 1 ea that the melting points of the metals g are raised by the pressure d due u e to contraction of the jacket of alu aluminum m oxide on heating glue containing of potash oh to Is slig suggested toy by prof schweizer ft german chemist as a water proof cement n t for glass A well known property 0 of f gelatine gelat lne Is that of Pe becoming insoluble on exposure to an african tat used for domestic ts is the oil of a species of beetle res it t resembles hardened cocoa W ot at 0 compressed into bricks by hy by ed 16 6 pr sure e the material occupy ier twy ka a third as much space as the W 0 te Is belig tested for army A navy use ae results thus far appear enow 6 i that it the tha treated flour Is fulte IV mi aff affected et c ed by bi dampness and Is free ta lym mould and safe from the attacks at insects unlike loose flour it may 14 stored fr a 4 long tittle |
