. The Canadian nurse . not appreciablyalter the temperature of the three dozen Erlenmeyer flasks of300 capacity are found the safestfor this work, and one dozen funnels of3 inch diameter, with a stem thatreaches down one-half the depth of theflask. Plugs of gauze filled with cottonare made to stopper the flasks, and loosecellophane caps are used to cover thetop and short neck of the flask. Twodozen pipettes, twelve to fifteen incheslong, are also needed. One dozen smalltest tubes with corks are required forthe collection of blood for both Wasser-man and grouping. It may facili
. The Canadian nurse . not appreciablyalter the temperature of the three dozen Erlenmeyer flasks of300 capacity are found the safestfor this work, and one dozen funnels of3 inch diameter, with a stem thatreaches down one-half the depth of theflask. Plugs of gauze filled with cottonare made to stopper the flasks, and loosecellophane caps are used to cover thetop and short neck of the flask. Twodozen pipettes, twelve to fifteen incheslong, are also needed. One dozen smalltest tubes with corks are required forthe collection of blood for both Wasser-man and grouping. It may facilitate matters for investi-gators to,know that the St. Marys Hos-pital refrigerator is a Frigidaire by Gen-eral Motors, and the clock thermometeris known as a Thermogauge, con-structed by the United States GaugeCompany, New York. Technique The writer fears that in the prelim-inary report upon this subject, sufficientdetail was not given. An endeavour willbe made to rectify this. The glassware MAY, 1939 THE CANADIAN NURSE. Illustrating the technique of collectingPlacental Blood, must all be boiled and thoroughly rinsedwith several changes of distilled preservative fluid, to the amount of125 (or the contents of one am-poule to which 100 of distilledwater is added) is decanted into theErlenmeyer flask and the cotton stopperand cap are adjusted. The flask is nowwrapped in a cotton wrapper in such away that releasing the pin or string atthe top allows the towel to fall downfreely about the hand supporting theflask from below. The funnel is simi-larly wrapped so that when held by thetop by the nurse, the stem is easily ex-posed. These are then sterilized in theoperating room autoclave. As many asdesired may be so prepared and keep indefinitely. The pipettes arewrapped or kept in a glass tubular con-tainer and similarly sterilized. Method of Collecting A small table is set apart in the case-room for the collecting of blood. On itare one wrapped Erlenrneyer
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