The Montgomery advertiser., 1905-02-19
SCIENTIFIC MISCELLANY
METAL DISTIILATION--A NEW OIL
 VISION AND DIGESTION.
False TestimOny--Britain's Climate Range-MOnOcular StereOscopy- A Stick-Fast-Dyed Lumber --HOg Aid for Weak Stom-
 achs-Zimaikum.


 The usual laws of distillation are proven by the electric furnace expert- ments of Moissan and Farrelley to hold good in the case of mixtures of metals. With mixtures of copper with zinc and with cadmium, the zinc and cadmium were quickly expelled, and lead separ- ated from copper in the same way, but after longer distillation. Some mix lures of copper and tin gradually lost their copper. others their tin, while others distilled without change of composition. Mixtures of lead and tin showed gradually decreasing propor- tion of lead until only pure tin was left. A remarkable peculiarity noted in tin is the wide range of temperature in which the metal Is liquid as 1t melts at 226 degrees c. while its boiling point Is above that of copper and lead
 Tho baobab tree, which has been transplanted from Africa to Asia and America, has a fruit whose pulp monkey bread'--is eaten by negroes. and seeds that are prized by natives of Madagascar for the oil that Is extract- ed by crushing and boiling in water. A French chemist has been investigat- ing. He finds that the round seeds grow to q diameter of three-fourths of an Inch, that their kernels contain 53 per cet of oil with much nitrogenous matter, and that the Madagascar oil IS a whitish solid which begins to melt at about 25 degrees C. The odor recalls become rancid, and is suggested as 8 valuable product in place of cocoanut oil, and in fine soaps and unguents~
 The nerves of eyes and stomach show remarkable interdependence. late medical writer finds that eye- strain causes digestive. disturbances. sea-sickness and even constipation, ano that stomach disorders affect vision. while hemorrhages into the stomach are sometimes followed by blindness
 Psychological tests of attention and memory tend to throw doubt upon most of the evidence offered in law courts In one of q series of recent experiments at the University of Bres- Ian, pr. l.. w. Stern examined twenty four pupils from various classes Tn reference to locality--a lecture room in which all had assembled elght days before-and asked ten questions con- corning the number of windows, whether the windows were barred, the external arrangement of the entrance door, whether there was any other door, the number of seats, etc. In the answers every fifth statement was found to be false, even under oath the accuracy varying between A and 100 per cent The law students were most inaccurate of all, their percentage of faults being 27 and that of others IS. while under oath their errors were 10 per cent. and those of others only s. A second examination was in reference to an event-a slight Interruption of the class exercises eight days before by a stranger who borrowed a book-and the answers were even less reliable, one-fourth of the statements being false, while only five of the class cor rectly reported che carrying away of the book, and much of the reports was hopelessly contradictory.
 The archaeological records of the British Empire for 1903 have just been brought together from twenty-five sta tions. The hottest place was Cool gardie, Western Australia with a max mum shade temperature of 113.4 de- grees on Jan. 27; and the lowest shade temperature was sos degrees below zero at Dawson on Jap. 26. The great est yearly range-150.3 degrees-was also found at Dawson. The greatest mean daily range was 23.5 degrees at Winnipeg. and the least was IS de- grees at Hong Kong. The greatest
 
 Hong Kong, and the least, 10.74 inches, at Dawson.
 A new single lens, the Zeiss 'Ve- rant" causes photographs to stand out in relief as under the two lenses of a stereoscope. The lens is convexo-con- cave, so that the axes of the rays from different parts of hte picture meet In the eye, and the focal length should equal that of the camera taking the photograph.
 A new adhesive that has gained pop ularity in France is a mixture of ca seine and tannate of lime. In prepar- ing 1t, a solution of tannin is pre- cipitated with milk of lime., :ne Iiauid Is poured off, and the precipitate is slowly dried. This dry calcium tan nate Is then ground in q mill with dry acesine in the proportion of one to ten times its weight, according to the use to be made of the adhesive The compound dissolves in water, pe- froleum, oils, and carbon bisuIphide adheres very strongly and is applied as a paste with water.
 A late innovation among Swedish woodworkers Is the staining of wood before seasoning, the idea being that of an Austrian inventor. The sap Is driven out by pressure, and the color Ing liquid-which may be one of the more permanent anilIne dyes-is in- troduced. Birch, beech, alder plane, elm and lime may be so treated. the color not being taken uniformly by oak. fir and pine. The stained wood Is not only adapted for furniture, but Is recommended for doors and win dow frames and even for outside fin id mn a protective coating of varnish seems to be required.
 The natural gastric juice of the hog has been used by an Italian physician nthe treatment of disease of human stomachs Nothing else so perfectly supplies the constituents missing and much success has been had with this remedy in nervous and debilitated con dltions of the digestive apparatus, dilatation of the stomach. chronic gas tritis, etc