0, 1897. 232 American optical instrument makers It is believed, however, that long will project beyond the object changes in construction or desifn glass. The image of the sun or moon which become evident as the work formed in the focal plane will be nearly progresses can, under these circum- 7… … telescope will eventually be placed. Itis and also by hand, the electric motors, expected that a great deal of the minor magnets, and illuminations being con- work of the observatory can be con- trolled from a _ switchboard placed stat with 24inch plane motion screws. . Little mirror will stand on…
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