. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. Fig. 3. A simple arrangement for dark-field illumination. (From Bausch and Lomb.) reflected by two successive mirrored surfaces which direct and concentrate them at a point in the colloidal solution (fig. 4). Thus does the illumi- nating beam of light not enter the microscope, only the scattered rays from the colloidal particles being visible. The change-over condenser permits. Fig. 4. The optical system of a cardioid dark-field condenser. rv » ^'. Please note that
. Contributions from the Botanical Laboratory and the Morris Arboretum of the University of Pennsylvania, vol. 14. Botany; Botany. Fig. 3. A simple arrangement for dark-field illumination. (From Bausch and Lomb.) reflected by two successive mirrored surfaces which direct and concentrate them at a point in the colloidal solution (fig. 4). Thus does the illumi- nating beam of light not enter the microscope, only the scattered rays from the colloidal particles being visible. The change-over condenser permits. Fig. 4. The optical system of a cardioid dark-field condenser. rv » ^'. 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 University of Pennsylvania. Botanical Laboratory; University of Pennsylvania. Morris Arboretum. Philadelphia : [s. n. ]
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Keywords: ., bookcentury1900, bookpublisherphiladelphiasn, booksubjectbotany
