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In order to meet the requirements of economy, simplicity and neatness I have devised the reagent outfit here illustrated for the use of my classes in the microscopic laboratories of the University College of Medicine, Richmond, Va.
This outfit consists of a tube rack and a set of reagent containers (Fig. 1).
The rack consists of a block of wood 2×2×6 inches, bored with 12 holes 1% inches deep by ⅜ inch in diameter.
The containers consists of 12 small test tubes, 100 mm. long by 8 mm. inside diameter. These tubes are equipped as follows:
One is fitted with a cotton mop and contains vaselin for sealing hanging-drop preparations. Three are fitted with ordinary cork stoppers and contain respectively, alcohol, acetic-acid-alcohol, xylol. Eight have pipette points attached to their mouths by means of rubber tubing 35 mm. long, 7 mm. outside diameter and 5 mm. inside diameter; the pipette
HOPKINS EG. A NEW REAGENT OUTFIT FOR CLASSES IN BACTERIOLOGY.. JAMA. 1906;XLVI(13):957. doi:10.1001/jama.1906.62510400035005