The Arkansaw traveler., 1885-01-03
re@filAi fee TAt .ArAsNssz Ybsveky.
 SCIENTIFIC MISCELLANY.

A@A AZ AS s'&A&@ & As@@&AAN |
 According to Prof. Astasia, ?, R, s, some tobacco leaves contain naturally ten per cen, or mors of sugar.
 An English surgeon, Dr. Leighton Kestevcn, reports remarkable success wi,h a ne~ An'issp,ie s.s;Ae4 ef treating wounds, consisting in keeping the sores cieansed by means of Jet of steam charged with a so. hutton of the oil of the eucalyptus or blue gum tree.
 4 suhteranean observatory is being established in a very deep coal mips near Nagasak,, Japan, the object being to deter mine what connection exists between earth. quake phenomena and those meteorological 1 phenomena belonging to the eat,hs surface, such as storms, tides, etc. The psojee,or is Prof. Milne, ofshe unNersi,y of rokie, the indefatigable student of earthquakes in the land in which they are most frequent A new lantern microscope, for display. ing upon screen greatly magpihcd images of very minute objects, has been exheitc Il before the misros eopiCal societies ot r.on- don, and has given results said to be greatly San advance of any previous achievement. A, one meeting A blow .dy's tongue vas shown from SIX 10 fourteen feet long, according Ia the pe~ers used, and the section of drone- hy's eye was magnihed s,soo dlametcrs, or more than six million times.
 While some uaturalists have seen | reasons for believing tha, light of some kind mus, exist several thousand fathoms below the surface of the sea, tt Is very improbable that sunlight can penetrate 10 such great depths. Al depth of SSo feet In the lake oi Geneva, Messrs. Fol and Sarasih have just found that the strength of the light iurthe day is about equal to ;hai which we perceive In a clear ntoonlen night Al tfs5 feel below the surface the light Is st,ll quite suoug.
 Rapidi,y of Sensation Attempts to determine the speed oi thought have been mad. by Prof Donders. of Utrecht, with tw 0 ,nstrum ents, which he calls the noematacho graph ana the ataehometer, He has i found that ;he brain mnst act for .dh.J of d second 10 proGa>c single idea, but this time will probably be shown to vary with l uiUttHnA biAihss pf tpt FyN tb lebtiNN au mp reSsion requires or of a second, and the ear needs .t4g of second to appreciate a sonLd ihs action of the eve being nearly twice as rapid as that of the ear.
 The Earth Molding Wind T, appears that the diTee, action of the wind during long ages has had some effect in the shaping Of tie land. In the piAtcaus of Central Asa, Gsaeral prjevalski has found evidence that violent winds have moved the small stones about. gradually pulvsrising the fragments by friction. and that the Inner particles thus produced have been blown to the valleys. where they have formed s constantly ttieh ening dsposit. On the Puy de Dome, in France, extensive wind-deposits have been noticed, an ancient temple of Mercury on tho top Of that mountain having been covered up in sand for nearly t~c1ty centutiss
 Plant Adaptation. Some remarkable 1 illustrations Of the power of plants to adapt themselves to diverse conditions have been furnished by the obsei u,tions of Senor La dislao Netto, of Rio taneifo, One plabt-- i stryot' noa ;iPiias:s..=-~ ionnd growing
 
 high. ~hile another specimen pf the same species was seen in the shade of some woods ony q few y~rds away as q yins siaty feet In length. Other plants were allowed to hs come vines Of considerable length ln the dsnGs Brazilian forests, and at once began to change their appearance Co that oi shrubs on being given free exposure to the sunlight.
 Improvement, Of the Potato, The com mon potato (Solsnum tubsTosum is a native of dry mosntain land and by cultivation In the mohi climates of Esrops and Amrric4 II has become liable to what ia fnowh ss potato diseahe or rot. Inc suggestion was short time ago made that It might be reinvigorstsd by miIturs ~i,h some one of the many other known species of Solanum, and an English ho..icnliur., MT A. W. Sutton, Is now striving to accomplish this result. During 1 last season be succeeded, as he believes, sp crossing s. haglia--a species discovered bI i Darwin growing In marshy sol on islands west of PatagoniA-~with the cultivated pc ,ato, obtaining thT.e well bllcd seed balls. The s-ed will be planted nsI, year, and fl is thought p.obsbls that they may produce po- tatoss better adapted to H,ois; climate. and soils than any of the varieties nov grown.
 Moon and Sun Power.-Not taking 1 into account atmospheric absorption, Sir William I Somson has computed tha, ~s re- ceiye from the faii inson Ugh. equal 10 that which would reach as from twenty seven thousand million milllon candies spread over ! the moons earth~srd bemlsphere, painted i black. II allowance h made for ihe loss of moonlight in passing through our aimos. 1 phere, the FambsV of csEdles must be mach