Show interesting experiments A european scientist chaoul bay aux has been counting the red cor muscles in human blood during aacen of mount blanc M bayeux draws the folio ving conclusions from his experiments the blood under goes a abid and cons demable increase tn the cumbe numbe of red globules when ene passes from one altitude to a higher level if one remains in the latter place tl e first number of glob ules is found to diminish slightly but not a great extent in a few hours descending to the starting po nt makes the number diminish to a great er degree but it is still above what it was before the ascension he finds that a second ascension made before the number has fallen to the original value causes a new increase which is greater than is remarked in the first ascension mach ne for wash ng D ashes several dishwashing machines have been patented within the last few years but most of them have been too complicated in construction only the proprietors of hotels restaurants cates etc know what a problem it la to wash so many dishes as they use in the course of a day and a simple device of this kind saves them time and labor this machine the anven tion of two ohio men seems exceed practical of operation no more than ordinary care being required to prevent breakage the usual table is provided underneath which are placed the tanks for the water rising above the tanks is a mast upon which Is a bracket the receptacle for holding the dishes being made of a wire mesh large enough to allow the ac from the dishes to pass through and is suspended upon this bracket upon the mast is a hoist basket holds the dishes ing baele which is operated by a lever secured to the end of the table the lever automatically locking when the receptacle is a predetermined de after the receptacle has been filled with dishes the lever Is re leased and the dishes lowered into the tank supplied with hot water and after a thorough cleansing the basket is raised and again lowered into the other tank which is connected with the cold water for a final rising all refuse matter passes off through drain pipes connected with the tanks artificial Artif cial cotton from wood good results have been attained in the production of artificial cotton ex traded from fir and freed from bark and knots the fibers are broken up by a special machine and then subject ed to steam in a copper lead lined cylinder for several hours after be ing boiled tor a day and a half in a solution of soda lye the material Is washed crushed more thoroughly bleached and dried by means of rol lers the cellulose thus obtained is heated and further manipulated to rp duce the fiber and then passed through a weak solution of carbonate of soda and between drying rollers finally to give the necessary firmness to the thread it is put into a bath of diluted ammonia and then washed with cold water compared with the natural product it is difficult to dis the artificial and it is said the cost of production will permit its becoming a competitor of the forme smoke prevent on dev ce A new smoke prevention device fer boiler furnaces has been invented by a glasgow engineer the system con s st of discharging a combination of bleam air and producer gas into the furnace the three elements are corn bained and discharged onto the fuel in the front of the furnace the re suiting chemical action releases the hydrogen in the steam and combine the oxygen with the carbon in alu fuel the decomposition of the sup plied gases is thus completed and creates great heating power emitting heavy e the latter however de creases in volume toward the tubes in which there are only flames and Is completely consumed before it reaches the chimney melts metal in port ons A novel smelting process that Is be ing generally adopted by mining w arks in germany is designated for quickly melting any small portion of a large mass of metal such an operation is of great importance for example for opening the clogged tapping holes of blast furnaces the point to be act ed upon Is first heated by the oady drogen pe or electric arc and oxygen under high pressure ie thrown against it the enormously high temperature thus generated at once liquefies the surrounding parts niagara s power niagara river in its course from lake erie to lake ontario falls a distance of feet A survey by the united states engineers who ceasur ed the flow of the aher below the falls shows that it discharges cubic feet of water a second from the one lake to the other by a simple calculation it appears that in its de scent of twenty seven miles from lake to lake magara aher develops the equivalent of about 9 OCO ical horse power |