. Journal of applied microscopy and laboratory methods. de me with one. I have been trying it on an airsterilizer (one of Jungs) with themost satisfactory results. I havealso got one for low temperatures,as per modifications suggested bymyself: i e, India rubber corkthrough which passes the tube t,at the inner end of which is a coni-cal entrance, c. B is a glass floatwhich is counterpoised, and whicheither rises so as to obstruct thegas entry (the black end closingthe tube t), or it descends into thecup A. This cup is provided witha tube which dips into the apparatus being put into


. Journal of applied microscopy and laboratory methods. de me with one. I have been trying it on an airsterilizer (one of Jungs) with themost satisfactory results. I havealso got one for low temperatures,as per modifications suggested bymyself: i e, India rubber corkthrough which passes the tube t,at the inner end of which is a coni-cal entrance, c. B is a glass floatwhich is counterpoised, and whicheither rises so as to obstruct thegas entry (the black end closingthe tube t), or it descends into thecup A. This cup is provided witha tube which dips into the apparatus being put into itsplace, the heat causes the mercuryto rise into the cup A, and lifts B,which will finally, i e., at a giventemperature, obstruct the gas pas-sage so as to limit the supply ofgas, and thereby govern the tem-perature. The form shown is, of course, serviceable for only one temperature, butby interposing a metallic cap and screw, as shown in the left figure, acting on aleather diaphragm, the apparatus may be regulated to any temperature. Thos. 1450 Journal of Applied Microscopy A Rapid Method of Making Slides of Amoeba. If a small film of detritus which contains abundant amoebae be placed in asolid watch glass with plenty of water and examined with a magnification of Idto 10 diameters, amoeba; can, after a little practice, be readily seen and can bepicked out with a thin-walled dipping tube such as any one can readily make forhimself. The medicine droppers which one buys have walls too thick to beavailable. The drop of water containing the amoeba may be placed on a coverslip andwith a little care any fragments of dirt taken up with it can be removed to a dis-tance by needles and then taken away altogether by a cloth or a bit of filterpaper. With a little experience also it will be easy so to manipulate the cur-rents as to bring the amoeba to the center of the slide. As much water shouldbe drawn off as is possible without incurring the risk of allowing the animal todry.


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901