The Montgomery advertiser., 1904-01-03

nanz--ewage Purified by Crow
 ing organisnas-A Novel
 Alarm-Man and Engine Plant Poisoning by e
 Plamt--sA New Sugar
 Plant-Commercial
 8adfum.
 The seientifac culture of potatoes is uowhere pracffcsd as hn Germany. In t4ak country states CorsuI-General Ma HQn. dozen of skillful and experienced #Fowexa give their whole time and ener- HX 10 the propagation of improved va-
 suAd the conditions Of soil. expos-
 3urpoze for which each is best
 Ire well understood. Certain va-
 .xcsl for food. others for starch
 Urine. others fot alcohol. and yet
 for stock feeding. Many of the
 3Az& are new but not more than
 ~ varieties are included in the crop
 AGticAl growers. although about 100
 s4e0 by dealers. and as many ab 800
 catalogued as long ago as 1888.
 sEndia the town of Karachi and it's
 fh of Clifton, two or three miles dis
 q are curiously threatened with sepa- "a by the growth of sand hills. Mr.
 Oldham traces the growth of these zz from small oval patches of sand ne stony gurface. and shows that even 82EUA aEN0&AI may SFduualIy 0euccI the
 curEent@ and produce a calm space sH an eddy of slowly increasing size, bs1 steady enlargement of the sand ac- Azaasation- Planting native grasses is nonE the remedies to be tried.
 zlae crushing strensth of rocks indi- naSas that there must be a limit to the asaibIa height of mountains. Mir. E. H. IF Nchwart1 calculates that the lower z4xax would be crushed in a coloumn of wal sandstone from two-thirds of a mile to Ave miles high. one of granite from fonr to seven and half miles and one ok zelstte from seven to nine miles.
 rho greatest authentic flight of a car <lax~niwe0n Is given by Maurice Dusolier an zS0o miles; the greatest long distance ssnesd was 58 miles e.I hour for 617 miles, The h5oIogical treatment of sewage has been studied for number Of years at fEs4nabttrg by Dr. Dunbar. The various zsrncesses of this kind depend upon the removal from solution of the putrefac- sfre matters through absorption by porous fsafnraal and upon subsequent oxidation hr micro-oxganisms. Without the activ- stx of the organisms, absorption soon 2sssses The absorption, which increases *s1sh the fineness of the material and .snsaf1y attains the maximum effect in four to six hours. proves to be purely aurfnce action independent of chemical eaffrmgtion, and so powerful iS 1t that Nf&rl1e elinlxers in contact beds withdraw fFAra fhe liquid not only coloring matters fu< also the complex nitrogenous sub- afances found in sewage. An interesting sxernn1e of absorption is furnished by Dr. rsunbax's percolating filter, in which one xsnN of the Durihcation takes place in mo nsx-inch layer of fine material on the surface.
 An alarm clock for the deaf is an in- Esresting bit of work by Tommy String sr d bIind deaf and dumb scientific stu zNnf of New York. The alarm attach snna4 utflizeg several means of awakening khe nleeper. It shakes a pillow in his f#fn 1t lights a small incAndescent lamp Y.awfnn a mirror focusing the rays into 7.fm ewes. and it explodes a illuminating eae with shock perceptble by the deaf ef e1oae range. The apparatus may also 1essVs as a burglar alarm or to give indi- <6ffan of fire by electric thermostats.
 xxurnan power and machine power are 4,s.Sssa lov Prof SchrnoIler. of Berlin Uni sSS~esRv. to have been equal in Germany N fss0. when the population was 100000 <nn-haff being labcrers. In 1SS5s with a stapuiaftou of 56,0O0,00o and the same pro- sssffaou of laboTers. the machine power f,a4 reached six times the manual. or. ac- coFaIns to some authorities ten times.
 u0hs1e strong plants destroy weaker afxsm ~ crowding. or by depriving them M atr IieRat or food. it is rather surpris- IF fo hear that one plant may poison
 :.