. Bacteria, yeasts and molds in the home. Bacteriology; Yeast fungi; Molds (Fungi). 138 BACTERIA, YEASTS, AND MOLDS particularly milk. So ubiquitous are they that it is an abso- lute impossibility for the housewife, by any means at her command, to keep her pantry and food free from them. These facts forcibly emphasize the futility of the common method of sweeping and dusting rooms. Bacteria are heavier than the air and, if undisturbed, settle and lie quietly upon floors, tables, etc. Every sweeping the room receives stirs them up. A dustbrush sends them flying through the room, only to settle
. Bacteria, yeasts and molds in the home. Bacteriology; Yeast fungi; Molds (Fungi). 138 BACTERIA, YEASTS, AND MOLDS particularly milk. So ubiquitous are they that it is an abso- lute impossibility for the housewife, by any means at her command, to keep her pantry and food free from them. These facts forcibly emphasize the futility of the common method of sweeping and dusting rooms. Bacteria are heavier than the air and, if undisturbed, settle and lie quietly upon floors, tables, etc. Every sweeping the room receives stirs them up. A dustbrush sends them flying through the room, only to settle down again later. On the other hand, wiping. Fig. 59. Petri dishes exposed, one, a, before, and the other, b. after a class has occupied a schoolroom. with damp cloths removes the bacteria and this is a proper meth(5d of cleaning. This is especially true for kitchens and pantries where food is exposed to the air, and for school- rooms where there is likely to be a collection of numerous kinds of bacteria, including some disease germs brought by the many children. Fig. 59 shows two plates, one exposed to the air before and the other after a school session. The relative abundance of bacteria floating in the air is clearly shown. These facts forcibly show the advantage of vacuum cleaners, which remove the dirt without stirring up the 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 Conn, H. W. (Herbert William), b. 1859. Boston, New York, Ginn and Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbacteri, bookyear1917
