...But whatever kind you use, have one with a good bulls-eye and a reflector... 
Oliver Hartley 「Hunting Dogs」
...AB is the window board, C is the negative box, D is the camera adjusted to the latter, E is the enlarging screen on an easel to hold the bromide paper, and F is the reflector...
John A. Tennant 「Bromide Printing and Enlarging」
...The direct sun on the white reflector will give a light of high intensity...
John A. Tennant 「Bromide Printing and Enlarging」
...The reflector C was {193}kept up to the required position by the handle lever, upright post andbolts...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
..."Phone ProfessorGiles," he said sharply; "he is working on the reflector...
Various 「Astounding Stories of Super-Science, November, 1930」
..."Slow up the speed of your reflector,Karl...
Various 「Astounding Stories of Super-Science, October, 1930」
...I saw now that the top of each tower was a grid of radiant wires, asix-foot circular projector with a mirror reflector close beneath itand a series of prisms and lenses just above...
Raymond King Cummings 「Wandl the Invader」
...At Greenwich there is the 28-inch photographic refractor, and the Thompsonequatoreal by Grubb, carrying both the 26-inch photographic refractor and the30-inch reflector...
George Forbes 「History of Astronomy」
...Sir John, grown more confident,adduced the example of the Newtonian reflector, in which therefrangibility was corrected by the second speculum, and the angle ofincidence restored by the third...
Richard A. Proctor 「Myths and Marvels of Astronomy」
...Theprinciple of the simplest form of reflector is shown in Fig...
Robert Stawell Ball 「The Story of the Heavens」
...With this reflector Herschel commenced amethodical piece of observation...
Robert Stawell Ball 「The Story of the Heavens」
...The discovery of spiral nebulæ was made by Lord Rosse with his great6–foot reflector...
Cecil G. Dolmage 「Astronomy of To-day」
...This was made with his five-and-a-half-footGregorian reflector...
Edward Singleton Holden 「Sir William Herschel: His Life and Works」
...In1787 got the mirrors and eye-pieces only for afour-and-three-quarter-inch reflector for five guineas; those for hisseven-foot telescope were twenty-three guineas...
Edward Singleton Holden 「Sir William Herschel: His Life and Works」
...But it proved intractable toHerschel's great reflector, to Lassell's 2-feet reflector, to LordRosse's 3-feet reflector, and even partially to the great 6-feetreflector...
Richard A. Proctor 「Half-hours with the Telescope」
...Place this reflector in the prolongation of the optical axis, set thecandle so that the light from the reflector shall be shown through theglass, and look through the opening...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...Keeler found that there were probably 200,000 nebulae inthe heavens capable of being photographed with the Crossley reflector...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...The reflector, on the other hand,forms the image at the focus of a concave mirror...
Garrett Serviss 「Pleasures of the telescope」
...The same eyepieces willserve for either the reflector or the refractor...
Garrett Serviss 「Pleasures of the telescope」
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