Fermentation organisms : a laboratory handbook / by Alb. Klöcker; translated from the german by G. E. Allan and J. H. Millar.

Date:
1903
Catalogue details

Licence: In copyright

Credit: Fermentation organisms : a laboratory handbook / by Alb. Klöcker; translated from the german by G. E. Allan and J. H. Millar. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    be used several times. They are cleaned by immersion in water; if very much contaminated they are boiled, being afterwards brushed with a stiff brush, and finally shaved with a piece of glass or something of the kind, after which they are washed with water.' Sterile Water Holder.—A holder with sterilised water is brought into use in many kinds of experiments, for ex- Fig. 40.—Holder for supplying Sterile Water. ample, in gypsum block cultures. Fig. 40 represents a holder made in such a way that some of the water can be drawn off without the remainder being infected. The apparatus consists of a globular or conical flask with a capacity of about 2 litres. It has a double-bored rubber stopper. Through the one hole a glass tube passes to the bottom of the flask; it is twice bent outside and a rubber tube with a pinchcock is attached to the end. A filter, which consists of a glass tube packed with cotton wool and covered with a loose glass cap, is placed in the other hole of the stopper.