. Bacteriology and mycology of foods. Food. Fig. 26.—Showing Incidence of Light Rays in Condenser. (After Bausch.) mirror is used the rays of light are brought to a focus within the con- denser. The concave mirror acts as a lens and together with the con- verging effect of the lens in the condenser causes the light to converge more rapidly than that for which the microscope was standardized. Bausch has depicted this in Fig. 26. Bausch makes the following statement with regard to the use of the condenser: "In the use of the condenser with oil immersion objectives the custom prevails of usi
. Bacteriology and mycology of foods. Food. Fig. 26.—Showing Incidence of Light Rays in Condenser. (After Bausch.) mirror is used the rays of light are brought to a focus within the con- denser. The concave mirror acts as a lens and together with the con- verging effect of the lens in the condenser causes the light to converge more rapidly than that for which the microscope was standardized. Bausch has depicted this in Fig. 26. Bausch makes the following statement with regard to the use of the condenser: "In the use of the condenser with oil immersion objectives the custom prevails of using the condenser dry. It is well to point out, however, that both the condenser and the objective lose in their eflSciency when the former is used dry, and for critical work the condenser should be in immersion contact with the slide. To make immersion contact between condenser and slide place a drop of oil on the top of condenser^ drop the slide upon the stage, first turning the slips to one side. With immersion objectives the proper focusing of the condenser becomes a matter of nice distinction to obtain best results and can. 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 Tanner, Fred Wilbur, 1888-1957. New York, John Wiley & Sons, Inc. ; [etc. ,etc. ]
Size: 1605px × 1558px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectfood, bookyear1919
