 ... for viewing faint objects near the moon, or satellites near their primaries, the committee are of opinion may be removed by enlarging the aperture of the Herschelian reflector to five or five and a half inches. The simplicity of the method of preparing...  Bulletin of the United States National Museum - Page 174by United States National Museum - 1963Full view - About this book
 | 1834 - 896 pages
...half inches. The simplicity of the method of preparing and mounting Mr. Hoicomb's telescopes is worthy of notice, since on this plan, the artist is enabled...telescopes whose performance equals that of Gregorians and acliromatics hitherto imported into the country at an expense of five hundred dollars. By order of... | |
 | 1834 - 882 pages
...half inches. The simplicity of the method of preparing and mounting Mr. Holcomb's telescope is worthy of notice, since on this plan the artist is enabled...mounting, telescopes whose performance equals that of Gregorian and achromatics, hitherto imported into the country at an expense of five hundred dollars.... | |
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