Show scientific miscellany the genus Fi larla that of the thread been credited at different to dr G archie stockwell with more than a score of species many of which jare are due to error and about all of the others there is much to learn the most notable are the san guinis ts horrid nis the P F and the P F lota iota or conjunctiva the first named comparatively common in the orient reaches a length of three fourths of an inch or more and infests the circulation being often unnoticed but in numbers checking the flow of lymph and producing painful plan dular enlargements abscesses sc esses etc the guinea worm found not only in africa but in the philippines and evan even in the west indies resembles a horsehair horse hair often three four feet long penetrating the muscles and sone sometimes times causing dangerous ulcerations ce cerat lons the F lota is found only under the conjunctiva conj of the eye is bout about a an inch long and while an african worm is not confined to neg roes as was formerly supposed A white victim an english gogian woman da eye ew brogh a pricking seA sensation nation and would notice it wander wandering ever beneath the conjunctiva raising a ridge as it passed and even crossing the nose edse to the other eye always invisible during cold weather after the ladys return to england it was finally removed from the left eye an electric reading apparatus has baa been devised for the blind by a french electrician it consists of a comb just covering the height of the letters and having five small points or teeth which emit momentary sounds of different pitch as they cross the lines forman forming a letter the succession of the sounds is thus made characteristic of the letter it if the teeth were made of selenium the electric current would 1 I 1 vary a athe intensity of the light varies and any one of several devices could Js IM used to transform the variations uta iata sounds the dwarfing dwar fing of plants on met and in cold regions is not due to the he low temperature M gaston bonnier bogater has shown experimentally that it results from successive site exposure i to tz cold at night and ana to sunshine by day the electric log of M le roy Is i wt bot an improved device for isho showing a ships speed but Is a new kind of heating stick it consists of a i rod of boid or crystallized aboid inches long and one fifth of an all ino inch through which is provided with coap connections at the ends and enclosed tn a glass tube form which the air is in exhausted Graph itald sili clum is especially pec ally lallY adapted to the purpose on account of its high specific resistance which Is roughly a thousand toshii time that of carbon it is only necessary to arrange several of these tubes between special current collectors collector to pile on the logs to form an electric heater either for warming or cooking and the great advantage of the apparatus la Is the readiness with which ones heater mo may be adapted to new requirements by simply changing the number of elements special sets may be easily tup ow ranged for temporary use in the openings of a range comparing t the seating ersulia from electric energy and gas gaa at paris prices M le bon finds the oft cost with the former to be something 11 1168 three times that with the latter ati but special conditions may greatly change the relative expense in practice A sin singular lar fa fact c t and one that has tona 1034 held up to tb the chemist the poo possibility inlaw of winning winn i ng n fortune and the gratitude of the human race is that one of the worlds greatest needs is fixed nit nitrogen although each square yard of the earths surface is pressed down by I 1 about seven tons of free nitrogen oiw in the fixed form of ammonia or acid does the nitrogen food tor I 1 plants in this form sir wen crooker pointed out at the recent british agaj V elation clation meeting our need is felt melv more I 1 and more each year as the consumption I 1 of the nitrogenous grains especially wheat is increasing at an I 1 rate while the land is becoming eo exhausted the fixed nitrogen lost in the sewage carried to ehg ocean being valued at a year and the chief source of new supply the nitrate of soda beds of chile is wholly ln adequate electric fixation isanthe remedy proposed crookes showed in aw VS that at a high temperature nitrogen a combustible gas burning in a strong induction current witha with a powerful L I 1 f I 1 and the formation of nitric and aad al nitra MOW jur acids and from later experiments he b concludes that the tons tone of ef air nitrate of soda to be required 1 f dually can be supplied electrically aiva ZU faeh ch ah cheap ex p dorcie V of ow niagara palls fans at a cost coat that even VW ow would probably be less than that of the eme chilean fertilizer A novel briquette factory exists at langenburg in prussia sig turf Is cut from an adjacent moor floated by water to the mill and is ready f for or immediate use in the first machine it is broken into small lumps it then passes to a machine grinding it into mull or it a fine powder then slowly slides through an inclined drying cylinder heated by exhaust steam and is finally compressed the average output is 80 briquettes a minute or about tons a year this full though burning slowly lowly is stated to give a fairly good keat heat and its low price cause a de awand greatly in erces of the supply the cost of production is stated to be leu less than per ton an artificial sandstone made at uc cle cie calevoet belgium is a silicate of line obtained by imitating the sup V iad 0 d conditions of nature A mixture or ofa 1 0 per cent osclean of clean coarse sand and SO 30 per cent of hydraulic quicklime is placed in an iron mold which is introduced deuced into a boiler filled with hot water badis lid ie kept for three days under a pressure sure of six atmospheres and at a temperature pera ture of about degress F the r S block is at first soft but quickly in air the stone to is ab homogeneous absorbs little has four times the crushing 1 40 h of french freestone and at C coo coat of ten cents per cubic foot la Is feh 4 cheaper i than the natural prod the poisonous es of preserved aerts ats hams game pies etc are found von P orm englin to be due to a spec atsa organal ism sm bacillus wilch secretes a so extremely irful that 1 of a grain killed rabbit in twenty four hours these Eo malnes are fortunately of only rare currence eur rence and in uncooked meats arg are t ti N royed by thorough cooking deg deg F being sufficient to render inert two wo french mechanics have placed electric motor upon the shaft effect the necessary nece esary movements of a sew machine machane mach lne freed from the driving and pulley the machine is very patt act and a small current drives it so i which may be varied from to va 0 1 revolutions per minute ammonia gas is an irritant poison two recent deaths in england re KW from mucous membrane in tion due to inhaling ammonia |