. Applied bacteriology; an introductory handbook for the use of students, medical officers of health, analysts and sanitarians. Bacteriology. 40 APPLIED BACTERIOLOGY the left-hand back top corner of the apparatus, is a small metallic hermetically-sealed capsule, which contains a few drops of a liquid having a boiling-point at or near the temperature which we wish to maintain the heated chamber. The capsule lies in a little holder suspended below the tube, through which the needle under the screw P (Pig. 7 and Pig. 8) passes. Soldered to the upper side of the capsule is a thick piece of metal,
. Applied bacteriology; an introductory handbook for the use of students, medical officers of health, analysts and sanitarians. Bacteriology. 40 APPLIED BACTERIOLOGY the left-hand back top corner of the apparatus, is a small metallic hermetically-sealed capsule, which contains a few drops of a liquid having a boiling-point at or near the temperature which we wish to maintain the heated chamber. The capsule lies in a little holder suspended below the tube, through which the needle under the screw P (Pig. 7 and Pig. 8) passes. Soldered to the upper side of the capsule is a thick piece of metal, having a central depression. In this depression the lower end of the needle seen in Pig. 8 rests, and the upper end of the needle enters a short distance into the. Fig. 7.—Excelsior Gas-valvb. socket end of the screw P. Communication is thus estab- lished between the capsule inside and the Excelsior gas- valve outside. Above is shown an enlarged view of the gas-valve seen in Pig. 7. A is the inlet for gas. C, the outlet to burner. BD, a lever pivoted to standards at G, and acted upon by the capsule through the needle which enters the socket below the screw P. The construction of the acting portion of this valve is such that, whenever the end B of the lever BD presses on the disc below the end B, the main supply of gas is entirely cut off. At such times, however, a very small portion of. 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 Pearmain, Thomas Hames; Moor, Cresacre George. London, Baillie?re, Tindall and Cox
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbacteri, bookyear1898
