. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . Fig. 17.—Ring water bath. Fig. 18.—The form of water-bathrecommended. water bath of the common shape, but in its roof arethree openings, a large central and two small lateralones. HYGIENIC ANALYSIS OF WATER. II A water bath is a receptacle in which the water itholds may be heated up to a certain temperature; whenvessels containing liquids are made to stand in or overthe water thus heated, evaporation of their fluid con-tents may
. Public health laboratory work, including methods employed in bacteriological research, with special reference to the examination of air, water and food contributed . Fig. 17.—Ring water bath. Fig. 18.—The form of water-bathrecommended. water bath of the common shape, but in its roof arethree openings, a large central and two small lateralones. HYGIENIC ANALYSIS OF WATER. II A water bath is a receptacle in which the water itholds may be heated up to a certain temperature; whenvessels containing liquids are made to stand in or overthe water thus heated, evaporation of their fluid con-tents may be effected at a temperature which must inany case be considerably below that which would bereached by the application of the naked flame. 26. A water oven. This is a small chamber whosedouble walls enclose water, which is made to regulateits internal temperature. The residue procured fromthe evaporation of a liquid over the water bath will still ^^.
Size: 1380px × 1812px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphiladelphiablakis
