The Montgomery advertiser., 1903-12-20
SCIENTIFIC MISCELLANY
MATCHIK HIGH TE1EPERA-
 TURE ACTION.
Uhe Suns Nysterious Ring-The Fastest Brain 0rowth-sugar from 0arbcuic Acid Color
 Blind Artfsts--Wind-
 Power x1ectrlcity.

Fresh revelations in the phenomena of high temperatures have been brought by the new quarts vessels of German mak- CTS. These vessels bear great heat with out softening and may be exhausted of air, while one end of a quarts tubs may be safely cooled and the other end kept very hot. In such tubes. heated in an electric furnace, German chemists have been studying the fusing and vaporisa- ton of metals in a vacuum. The varying behavior of zinc, cadmium, selenium. telIurium, lead, autimony, tin. bimuth. silver, copper and gold have been watch ed. the evaporation of cadmium beginning at s2o degrees C., while gold-the most re- fractory metal tried-distiiled but little at 1s75 degrees.
 The peculiar atmospheric or solar phe- nomenon known as Bishops ring seems to be of very rare appearance. It was first observed in Honolulu by Rev. Be- reno Bishop a few days after Krakatoa eruption of 1888, and 1t has been seen but few times since. M. Forel has reported noting 1t on the first three days of last August from height of 6.50o feet in the Alps. It appeared as a double ring around the sun. the inner portion being of bluish- silver color, while the outer part was band of copper. % degrees wide. shading of into the blue of space.
 Brain development is found by Pro- feseor Seggel of Munich, to have two periods of acceleration-fron 10 to Il and from H to IS in girls. and from H to is and 1s to 20 in boys. At the period of most rapid increase fin height, from 12 to l4 years, the growth of the brain is less than one-hundredth that of the body. but at r to 1s 1t grows one-thirtieth as fast, and at 20 reaches one-seventh of the body growth.
 Carbon is the basis of all organic prod ucts, and a striking discovery of Julius waither, St. Petersburg chemist, Is that this element may be made to enter into various combinations with oxygen and hydrogen by simple electrolysis or water charged with carbonic acid gas, the results being several sugars and vege- table acids from one form of simple ap- paratus. The water was charged with the gas evolved on pouring hydrochiortc acid on marble. The anodes of the electric apparatus were brushes of platinum ana the cathodes were preferably Of clay or silicates of aluminium with large surface. The solutions about the anode and cath ode were enclosed in separate clay recep- tacles, that of the anode being kept D dexrees c. warmer than the other by a lamp. The current was gradually in- creased both in power and in intensity, and at 9 volts and 0.75 ampere oxalic acid appeared, being soon followed by tartar1c acid, and by citric acid at volts ana 2.25 amperes. Fruit sugar was produced at s volts and amperes, then grape su- gar. The richness of the products in car bon seems to increase with increase in current and intensity.
 A collection of pictures by eolor-blind persons formed a late novel exhipiron by pr. F. W. Edridge-Green before London Society. Dr. Green divides the rolor-blind into two distinct but asso- ciated classes. The first consists of per- cons with a spectrum shortened at one nr both ends who consequently cannot .aa certain rays: and an individual with . rhorteninT of the red end would not zee n red light at e distance, although able to pick out all pieces in mixture of colored wools. The second class are unable to recognize certain coiors' NOT yral aixhted persons see six colors. some evan 7Geveu: the second class of the col or-hlind see five, four, three, two or one color, and are called pentachromic' tetra- chronic, etc.
 Sycamore is an exceedingly durable wood, and a statue from 1t. now m the museum of Gizeh, is reported sound ana natural in appearance. although nesrly 6eOO years old.
 vrhA problem of wind power for electric atationa has been studied for seveIai SSars bv Professor LaCour, in the inter Ssf of the Danish Government. 10 oyer coTne the difficulty of irregular speed; tne motor is provided with an fntermeolatSs Ghaft in connection with a balance, s atio The belt from the windmill is ieu veru- aa csiiv m the disc of this shaft, the pres cn1S C,1rS oy, the latter being regulated by the Ssisnca bearing convenient counter. SSeights. Through this device the belt ~iises on the disc as soon as the Ioaa Sexceeds a given maximum. A wind pow. Sr nisnt. supplying about 50 amperes or Sarrsnt at 1i6 volts, has been in opera x1c,. ahout "a year at Askov, Denmark, sSS faeds about 450 incandescent lamps. Tt has given excellent results with nItle aftentiofl. calms of several days pelng bfidTed over by reserve or peuoieum motors.
 A Herman chemist describes a new ce- vnent composed of casein and some tan- snic acid compound, that becomes very hsr6 When dry, and is then insoluble in Wstar oils. petroleum, etc. In preparing St caicium tannate may be obtained Dy Sdding clear lime water to tannln solu- Sion unfiI no further precipitation occurs Chen mourning off Tne liquid and drying the nrecipitate. The calcium tannate IS mix Spom to i0., The dried mixture is re- A,iced to powder, which is ready for use 0S sdding water to any desired consist ency.
 The serum obtained by inoculating