. Laboratory work in bacteriology. Bacteriology. 246 BACTERIOLOGY. The author's thermo-regulator *, shown in Fig. 37, is intended to overcome the difficulties mentioned. Although, apparently, more complicated than the ordinary regulator, it nevertheless is easily adjusted and is extremely sensitive. The gas tubing is attached to the strong, wide inflow and outflow tubes {a' and a") and is thus independent of the regulat- ing parts. The upper portion consists of the three parts A, B and C, the arrangement and working of which is readily understood from the illustra- tion. The gas enters th
. Laboratory work in bacteriology. Bacteriology. 246 BACTERIOLOGY. The author's thermo-regulator *, shown in Fig. 37, is intended to overcome the difficulties mentioned. Although, apparently, more complicated than the ordinary regulator, it nevertheless is easily adjusted and is extremely sensitive. The gas tubing is attached to the strong, wide inflow and outflow tubes {a' and a") and is thus independent of the regulat- ing parts. The upper portion consists of the three parts A, B and C, the arrangement and working of which is readily understood from the illustra- tion. The gas enters the inflow tube a', and passes through the opening &, into the interior of B. On account of the stopper C the gas cannot leave except by pass- ing through the opening c into the narrowed portion of B. It leaves this delivery tube at the lower end (/) and through the opening d. The latter supplies the minimum amount of gas necessary to keep the lamp burning. This supply can now be regulated with absolute pre- cision. The opening d is made through the parts B and C. By turning C, the opening through this part becomes excentric to that of B, and hence, the minimum supply of gas is thus diminished. The delivery tube / should not be too narrow and should almost touch the bottom of A. The first droplet of iCentralblatt fur Bakteriologie, 23, p. 1054, 1898. This instru- ment can be obtained of Greiner and Friedrichs, Stiitzerbach i. Fig. 37. The author's Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Novy, Frederick George, 1864- . Ann Arbor [Mich. ] G. Wahr
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