. A treatise on Asiatic cholera. )ac-teria, they are in turn killed, and in this way at the expiration of eightdays the process of sterilization is Fig. 11.—Receptacles and covers for potato-cultures. In order to solidify it. the serum is then heated up to 159° F., not anyhigher lest it become turbid, and is so poured into test tubes as to preventa broad sloping surface exposed to the air. The accompanying diagrams illustrate Kochs apparatus for the sterili-zation of blood-serum. It consists of a double cylinder made of sheetcopper and provided with a hollow lid. The cylinder is ha


. A treatise on Asiatic cholera. )ac-teria, they are in turn killed, and in this way at the expiration of eightdays the process of sterilization is Fig. 11.—Receptacles and covers for potato-cultures. In order to solidify it. the serum is then heated up to 159° F., not anyhigher lest it become turbid, and is so poured into test tubes as to preventa broad sloping surface exposed to the air. The accompanying diagrams illustrate Kochs apparatus for the sterili-zation of blood-serum. It consists of a double cylinder made of sheetcopper and provided with a hollow lid. The cylinder is half filled withwater, the liollow lid likewise contains water. The lid has three openingsinto which thermometers are fitted. One of these shows the temperature


Size: 3086px × 810px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1880, bookpublishernewyo, bookyear1885