The object-glass is provided with diaphragms pierced with round holes or slits.
The front end of the telescope is open, there being no object-glass.
Its object-glass is nine and a half inches in diameter, and its length, fourteen feet.
In the case of the object-glass of a telescope the image was at what we may call the short focus.
It contains a telescope made by Fitz, whose focal length is seventeen feet, and its object-glass is twelve and a half inches.
The blond daughter of Eve consents to pose before the object-glass.
These words have not come from the phantom of the object-glass, but from a living being that stands by his side—Marie.
Furnish the first of these tubes with an object-glass at G, and a concave eye-glass at F.
This seemed very odd; he made another examination, and at last he looked at the glass,—the object-glass was missing.
Suffer no inexperienced person to deal with your object-glass.