The Arkansaw traveler., 1885-08-29
Compiled for THK ARKANsAw TRAvRLKn
 SCIENTIFIC MISCELLANY

Two French investigators have found
 that the electric resistance of most pure u.,.
 als decreases with a lowering of tempera,u,.
 The sound of thunder, PAlmien find.
 cannot be heard more than thirteen n;l.,
 while lightning may be perceived at ia,
 greater distance. So called harvest hsb,.
 ming" must come from a distant storm ..
 there can be no lightning without rain and
 thunder.
 Lyen estimated that the gorge of Mag.
 ara river was cut out in about s5ooo years b,,
 surveys to determine the present recession of
 the falls indicate that the work may have
 been done in Io,ooo years. During forty on. years ihe average annual wear of the roc.
 was 3-4 feet.
 Captain Traut, British navigator. wac l surprised 10 find that an iceberg encountered
 Tn the Atlantic on Iuly I6;h exerted no an.
 preciable influence on the temperature of ,b.
 surrounding water, the thermometer s,and;,, at about 57 degrees for several miles on eitb., side Of the immense ice mass aud with, , few hundred feet oft.
 The hrss specimen of archalopteryx. the fossil link betwees birds and reptiles was discovered in Germany in rS6o. and wac sold to the British Museum for $, 800. second specimen, more perfect, was secured lew years age, and was finally sold to the Berlin Museum for about 5 900 These fos. sils have ali 1rded a strong argument to sun. porters of the Dawinian theory of deyelon. ment.
 Ffom time to time interesting arch;eo. logical discoveries, illustrating the commerce aud luxury of ancient Rome, have been made near Monte Testaccio. Colossal remains of a great emporium built about 200 B. c. still exist. In 1898 considerable portion of the quays was found, with many blocks of fine marble, and now two warehouses have been unearthed, one filled with elephants tusks and the other with ceniils.
 Terrestrial Temperature.-In iuyesti. gs,ions now being carried CT ay the German government, shalt sunk in the earth is found to be heated to I2o degrees at a deuth ot about 4,5oo feet. If the temperature in creases regularly downward at this rate. inc boiling point of water should be reached at A depth of about two miles, and the melting point Of platinum at forty five miles. From this calculation i, is thought that the earth's crust cannot be more than one ninetieth of its radius.
 Juplter's Great Spot.-The flmous red spot which appeared on the planet Jupiter in IS78 and after attracting universal at,en- ton and perPlexity for five years faded almos, entirely away, is reported by Mir. Denning, an English astronomer, to be again becoming darker and more conspicuous. A search of astronomical records has shown that this spot is identical with one seen by two ob- servers in IS43. If sucn is the case, i, mus, represent some permanent Jovian feature of immense size
 Lunar Geography.-The mountains and hollows on the moon which have thus far been given names on the maps of astrono- mers are as follows Mountaias-the Appe- nines, the Caucasus, the Alps, raurius, Bae. mus. the Altai mountains, the Cordilleras, the kiphae mountains, the Carpathians, the Her cynian mountains. Follows or valleys-The Christian sea, the Sea of Fertility, the Sea of Nectar, the Tranquil sea, the Serene sea. the sea of Dreams, the Sea of Death, the Dreamy Marsh, the Cold sea, the Sea of Vapors. the Middle Bay, the Sea of Clouds, the Sea of Mist, the Bay of Epidemics, the Stormy Ocean, the Showery sea- the Sea of Rainbows. he Sea of Dews, Humboldt's sea.
 Pasteur's Success.-Vast possibilities lave been suggested by the success of Pas eur's method of protecting cattle and sheep rom anthrax by inoculatioa with the atten- lated virus, as there seems to be no reason or believing that we may not similarly ward 'ff the attacks of other deadly contagious dis ases of man and beast. The efficacy of this ystem is shown by the report just made by a 3elgian government commission. Since the bring of 1883 many vaccinations have been 'erformed a, Herve on farms where anthrax $ constantly present, and the investigators lave fully satisfied themselves that Pasteur,s method preserves both sheep and cattle from he disease. Among thousand fully grown attle which have been vaccinated no case of nthrax has been observed, while the non- accinated have died as usual. The protec- i've influence has lasted one year in ninety Ter cent of the young animals, while among Il mature animals the duration for each inoc- lation is at least two years.
 Odors of tue Body.-ln a recent prize ssay pr. Minon has given an interesting col ection of facts and assertions concerning he varying odors impsrted to the human ody by the precipitation and the secre,ions the skin. A keen faculty of recognizing dif- erences in the body odor has been known in ome individuals. although it is less common , civilized than in savage people. Cadet de iassicours instances young lady who could istinguish men from women simply by their dors, and a Hungarian monk claimed to be ble to decide in a similar manner on the hastily of females. Alexander the Great. ccording to Plutarch, exhaled an odor of iolets, and one of musk is said to have been Fnitted hv Aaihsrha C,;..