When in his twenty-first year he began constructing reflecting telescopes for himself.

Clyde Tombaugh as a young man with his home-built reflecting telescope.

I mounted my ten-inch home-made reflecting telescope, and began my survey of the heavens.

A reflecting telescope, of two feet focal length, by ditto.

Such is the principle of the famous reflecting telescope which bears the name of Newton.

In the reflecting telescope, however, there are necessary limitations.

And yet reflecting telescopes had not, as a rule, been successful in permanent practical work.

Whereas others are like Hooke peering through his Microscope or Newton through his Reflecting Telescope.

A reflecting telescope: the largest in the world.

Even the wooden framework of the reflecting telescope which he used was painted a brilliant red.

I think it was about the year 1868 that I began to make a reflecting telescope.

Here is one of the chief sources of interest in the possibilities of a 100-inch reflecting telescope.

People are naturally awaiting the latest news from the giant refracting and reflecting telescopes of the day.

Reflecting telescopes show the stars in a mirror, and the observer looks down to see the heavens.

Three years later I initiated Mr. Maudslay into the art and mystery of making a reflecting telescope.

After Mr. Clark had made this little telescope, he made larger reflecting telescopes that were very powerful.