. Scientific news for general readers; a popular illustrated weekly journal of science . Fig. 2. college laboratory, and, as we have seen it in operationthere and know it to be simple and efficient, we think it isdue to its inventor that it should be mentioned; at thesame time, some of our readers may be glad to know ofit. The apparatus referred to is shown in Fig. 3, in which a is the tap for admission of water from the street main; bis an upper and c a lower cone, by means of which air issucked in through d, and forced through the tube/into thevessel A, when the water is turned on; ^ is a sy


. Scientific news for general readers; a popular illustrated weekly journal of science . Fig. 2. college laboratory, and, as we have seen it in operationthere and know it to be simple and efficient, we think it isdue to its inventor that it should be mentioned; at thesame time, some of our readers may be glad to know ofit. The apparatus referred to is shown in Fig. 3, in which a is the tap for admission of water from the street main; bis an upper and c a lower cone, by means of which air issucked in through d, and forced through the tube/into thevessel A, when the water is turned on; ^ is a syphon fordrawing off water from A, and h is an air-vent to preventthe flow of water being checked by an accumulation of the cock e is opened, there is an escape of air at. T Fig. 3. pressure, which is used for blow-pipe and other work, andwhen required the tube d is connected with any apparatusrequiring exhaustion, as in Fig. 2. It will thus be seen that there is a remarkable resem-blance in the working of the two apparatus, and that bothof them are designed to give identical results. The Accident at Crarae Quarry.—A bluebook has beenpublished, containing the report of Colonel A. Ford, HerMajestys Inspector of Explosives, on the explosion at CraraeQuarry, Loch Fyne, on September 25th last year. It will beremembered that a large party went on a steamer to see theeffect of some blasting operations in the quarry, and thatafter the explosion they visited the spot. Many of them wereseized with faintness; were dead when rescued, one diedafterwards, and five others were conveyed to the infirmary atGreenock, where they recovered. Colonel Ford gives in minutedetail the gases which must have escaped after the explosion of13,000 lbs. of gunpowder, and descr


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Keywords: ., bookcentury1800, bookdecade188, bookpublisherlondon, bookyear1887