Word: glasse
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Dates: during 1890-1899
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...taking a photograph with cathode rays a plain dry plate is used. There are the customary slides in the holder but there is no central opaque partition. The hand or object to be photographed is put on the slide and you get a photograph of the shade. As glass absorbs the rays a lens would be of no use and would prevent the taking of a photograph. Thus the common process of photographing is exactly reversed with the cathode rays. This was illustrated by a picture thrown on the screen where a camera was shown with the larger end towards...
...very sensitive Cramer dry-plate about four inches long and 1.5 inches wide, was put, film side up, into a wooden box, having a close-fitting sliding wooden cover. Upon the sensitive plate were laid two clear glass slips, less than one sixteenth of an inch thick. A space was left between them about four inches long and one half an inch deep. Across the glass slips to hold them in place was put a narrow bar of pine wood five-sixteenths of an inch thick. The wooden cover, three-sixteenths of an inch thick, was then pushed into place...
...taken at the Lick observatory December 8, by A. L. Colton, shows the tail to be composed of one long streamer and several short ones. The principal streamer is much curved. The comet may now be seen with the naked eye, but is more easily found through a field glass...
More than 4600 volumes have been added to the Institute of Technology library the past year, making the total more than 50,000. One of the most recent acquisition is 261 volumes, the gift of Thomas Gaffield, a retired Boston merchant. These books treat of the manufacture of glass and porcelain, and are many of them very rare. The volumes date back to 1647. Two of them are valued at $100 each, and the whole collection is worth...
...Ware Collection of Blaschka Glass...