George Wishart : Art Notes

aessesseerwal CATALOGUE of Oil Paintings By Mr. GEORGE WISHART, Member of the New Society of Artists, and Exhibitor at The National Gallery, Hobart, Tasmania. No. 1.-" A Fire on a %Vet Night." Through drizzling rain, Ons ird they dashed to the raging flame. 2.-"The Catarart Gorge, Launceston, Mimi:oil:I. 3.-" View on the Tamar River, Tasmania." The Rescue at Sea." 5.-" A Rough Sea." 6.-" Enoggera 1Vaterwodcs, looking east." 7.-" Enoggera Waterworks, looking west." 8. -" Cataract Gorge, Launceston, Tasmania." 9.-" Cataract Gorge in flood, Latinceskin, Tasmania." t 0.-" Observatory, Brisbane." 1 1.-" On the Wallaby." 12.-"A Passing Cloud." 13.-"Sunrise, April 9th, 1906." 14.-" A Summer Day." 15.-" The Arrival." r6.-" The Departure." 17.-" Running for Shelter." 18.-"Indooroopilly." 19.-" The Old Homestead, Peak Mountain." 20. -" The Coming Storm." 21.-" After Rain, Tasmania." 22.-" A Pleasant Breeze."' h3.-" Wind-swept Shore, Moreton Island." 24.-"Sandhills, Moreton Island." 25.-" Upper Brisbane River." 26.-" Low Tide." 1/ 11 1/ /1 TO BE SOLD BY AUCTION at Isles, Love. & Co.'s, on Friday, 10th August, at 11 a.m. PICTURES ON VIEW AT THE MART ON AUGUST 0, 7, & 9. THfc ; ktifinNONIIIIIMP. A ilike.MILB coitE OF IRON. Prof, ion I'letAttrt, a German 'avant, has arrived at the conclusiou that the centre of the earth consisuctuf a core of iron mutely MO links in diameter, ear - rounded by ta stony shell about 104.10 notes thick, on the surface of which we dwell. Hie reaeauner i1 based on a study of earth- quake shocks and tremors. EvorYbotly wa.t be aware by this time, save Profemor Servies, of one of the most startling and wonderful of ail the dis- coveries ofmodern weience-noteely, that a heavy eqrthqualte shock is not felt plainly inthe cruet of the eart. but, that it scads waves straight throw the globe in all directions. Seismological observatories inwidely separated countries frequently record there waves or tremors, and the obevevers, by a comparison of observe - tipple, are able to say, " There has been an'earthquake at such and caoh a point on the earth." Not seldom It happens that a shock occurring in the middle of an ocean, far from any hind, is thus recorded, anti, since no damage is done, its occurrence would never have been known but for thc telltale tremors bent through the globe. At first it was all that the tieisnolo- giate could do to establish the simple' fact of the existence of those world wide tr..- niers affecting the entire frame of the great vlatteh lint now the instruments used have become so delicate, and they have been tetablished at eo inane points on. th; earth, that the peculiarities of dif freest seta of earth waves can be detected, and their varying velocities measured. It in upon this fact that Professor Wieoliert founds his conclusions. 'to indicate the nature of his work it is enough to sty that he finds the aver. age velocity of the preliminary treinme of an earthquake is about four and a half milts a second athe surface of the earth. but that it gradually inercesot up to a depth of 800 or 1000 milts, and then it suddenly leaps to neatly eight muss a SCCUSUI. grerhtal increase of the vekkity of the waves is to be ascribed to the M- enage in the density of the cartleti cruet string to the presence of the superirict bent layens. But the eudtlen ine...ase of velocty at a depth of some 1000 miles shows that a gina.t change in the damn; ter of the substance of the earth must occur there. It moat become suddenly Mr more dense and ,chid thrill it in above, and this velocity with which the tremors traverse this part of the interior of the globe indicate that the material concerned is iron. IIthee the conclusion that the tore of the oirth contest, of iron, in a vast globular mass, nearly vo14) miles in diameter. It is no matter of surprise to scientists, Professor Service adds, to find that the teeth has anima core, hemline its mag- netism has always been en indication of that fact, the manner in which the fact is established is highly interesting. At. a depth of some twenty miles, ac- cording to Professor Wionhert, there must he a layer of limit}, or plastic material the presence of which is fillOW4 by certain long vibrations which have en average period of eighteen second. But the greater part of the interior of the earth is not composed of matter ap- proaching the liquid state. The hest' may bb gran to melt any known material, but the pressure is so immense that it,is held in a virtually solid state.