These three adjustments having been made, the prisms P3 and P4 are removed and replaced by another prism in which the silvering is arranged as in fig.
The brightness of the image is sometimes in creased by silvering the glass; and on removing a small portion of the silver the observer can Object see the image with part of the pupil while he sees the paper through the unsilvered aperture with the remaining part.
Formerly the fur was only used for hatters' felt, but with the rise in prices of furs these skins have been more carefully removed and-with improved dressing, unhairing and silvering processes-the best provides a very effective and suitable fur for ladies' coats, capes, stoles, muffs, hats and gloves, while the lower qualities make very useful, light-weighted and inexpensive linings for men's or women's driving coats.
Oil of cloves is used in the silvering of mirror glasses.
Sirian edged closer, his wise gaze and silvering hair the only signs of aging on his otherwise lean frame.
Another was hunch-backed and dressed in heavy robes despite the heat of the day, and a third man barely taller than her had white irises and silvering hair.