LAUNDER THE 1Unique Proposition to Purify Sew York* rASK FOR FIVE MILLIONSWill Not Only Cleanse AtmosphereBut Propose to Make ValuableProducts From It.NEW YORK* April 23 —For the trifling sum of fo.0000»«*, two breezy scientists have offered New York city the opportunity of having1 its atmosphere freahlaundered every twenty-four hours and [jail Us microbes, coal dust, and bacilli ‘ J carefully sifted out.Dr. Hans Eeibreich and Dr. L*. D. i Eothrop, who announce themselves as -Mhe founders of the new science, have t presented their plan to Mayor McClellan. * They do not see how he can fail to accept it.This is a twentieth century he-51 nomenon. they assert in their letter, [ “springing uton the technical horizon, bringing to a crowded population the blessing, if the government, whose duty - it is to promote the welfare of its people, will assist in installing the aya-t cm. ‘*Air Analization.These two pioneers in a new field of science call their discovery “a system of air canalization and evacuation.** Dr. Han« Eelbretch describes himself i as a civil engineer who has lived in „ ' Europe. He neglects ic* give an)* partic- ulars concerning Ir. Dothrop, his associate, Roth live in Gloucester, Mass.. but are willing to move to New* York ifMayor McClellan and the aldermen willadopt their plan for cleaning the air. The two discoverers propose to man-i ufacturv valuable by-product* from thegarbage extracted from me air, andthey tell the mayor:Enormous profits will be derived from these side products, which will refund the entire investment and pay the running t-xp^nsec. All this has been « carefully proved by careful estimates* [ of the founders.** Full of Chemicals.They explain that the side productsps I arc to be realized from sewerage ^ and for this purpose cold storage housesMare to be erected between the “evtoe j uator * and the outlet; on the walls of these houses enormous quantities of ^; saltpetre, ammonia* potash, soda, and* I acids, such as urea, c.. form, all of J which can be used for medicinal pur-5 poses of all kinds. '3 I3KF1 IaI I We get the first chance at the newsystem. It is described by its founders ^ ! as a. system of preventing plague. J smoke dust, odor and other poisonous ■ gases that are in the air of the metrop-* oils by a canalization and evacuation i system by the use of the present sewerI system.” ^TTF SWflrt- 4 - . J : [ To institute this system, write the_ founders, It is necessary to constitute two new departments, one for hygiene \ and one for fresh atmospheric air, be-; cause by the system the bad sir and t the poisonous atmosphere is removed | from such rlalt; es as desired. !'*The undersigned founders should be I appointed as heads of these two depart-S1 ments beforeoienttoned, with authority e I to carry out the pr *jects, estimates and . other requirements previous to ins tall ;uge] What They Caught* j The mayor is invited to investigate the system through experts on hygiene. s chemistry, engineering, and xnetereol-j ogy.n i The founders of this system,** it is P stated, have made a number of tech-5‘ ! meal, chemical, difficult, dangerous, and ~ expensive eutiometrical analyses of thos different atmospheric air tak^n from the I* surface of the metropolis of New York, n From analyses, the atmospheric air j. of the city of New York was found to i contain, besides the regular mixture of oxygen and nitrogen, an extraordinary h proportion of hydrogen, poisonous car-•r j bonic acid gas. ammonia and other different gases mixed with more or less ra bon particles, smoke, dust, dirt, and5 other dirt and a kind of mephitis, which is absolutely Incapable of supporting f human or animal life. '-jET ■ jffn . 1 The well-noticed disagreeable odorh which is more apparent in changeable { weather, which is caused by said gases ** * not rising on account of gravtfJK is de-rived mostly from th^ evaporation of *1 ail kinds of things, such us kitchen ^ wastes, wash drying, overcrowded dwell-. ings. closets, fires, stables, respiration '* and perspiration of crowded human and f* animal bodies, smoke, dust, sewer gases 11 and fermentations of all kinds,The scientist declares that a thickblack cioua. similar to a volcanic r | witch kettle ’ hangs over this city. This ir cloud, they assert, represent a a volume I of iw.m.m.m cubic yards.| Evacuators the Thing.To get rid of this cloud, reciting with impurities, the discoverers propose to install+ttieir evacuators. One air sling n machine, with a ten-foot hoop, they 1- claim, will evacuate more than H.tlOO h cubic yards of air per minute. Onehundred of these centrifugal evacuatorsj w ill replace in twenty-four hours 15*V»r 000.000.fK) to L’OO.eOO.OQQ.flBO cubic yards of* o air. This will drive the bad air as fax ►f away as desired.o i The impurities are to be caught In t i the sewer and swept Into the river. To e do this sewer nets, hermetically closed, y I with suction pipes attached, are to be e installed. Thus the microbes and im- purities are all sucked Into the sewer e and disposed of.The founders close their glittering I offer by saying that if the city desires j to experiment with the air canalization scheme an extremely cheap experiment . can be made by cleaning the foul at-L mosphere of the subway.Mayor McClellan has sent the propo-* sition to the board of alderman, and “ \ the health committee of that body is n to have a public hearing on the scheme )f 1 in a few days.If