MICROFICHE REFERENCE LIBRARY

3 i Making the Laboratory Readyslide being stained/on a staining rack/slides covered with staina staining sink has been madefrom a plastic bucketeglass tubethe glass tubes areperfectly horizontaland the slide is evenlycovered with staina staining sink has beenmade out of an old petroltin cut in halfML 57HOW A FILTER PUMP WORKSwaterDEthis isa siphonnarrownozzleQll~,/+inlet tube4 piece has been cutz _Ifrom the edge OT mebucket for the tubeshelfwater rushes\ stone at the bottomof the waterwater comingdownII- rubber tube,use the tubefrom bloodtransfusionsets 8’bubbles ___C $1I IhiOlbl!I IAllthe glass tubesof the stainingIvrackIwater _ tglass tubesthis is the slidebeing washedSpecial levellingscrew-- - -- -J[ide covered - -with stainbenchFig. 3-lSinks and staining- -a blood pipette%bcup-LzPbeing cleanedjug and poured over the slides. A wash bottle filled withwater is also useful,Another way of getting water to a sink for staining isto use a bucket on a high shelf, a siphon, and a clip, asshown in Picture E. A siphon is a way of making waterrun upwards before making it run a longer way downwards.The flow of water in the siphon has to be started.The best way to start it is to put all the tube under thewater in the bucket and to fill it with water by moving itabout in the bucket until no more air bubbles out. Thenpinch (close) the lower end of the tube and quickly bringit over the side and well below the bottom of the bucket.Stop pinching the tube and water will start flowing. Youcan then put on the clip. Water will start flowing orice