JOURNEYING BY TELESCOPE
San Francisco and only suffered slightly, but a telescope is a delicate instrument that cannot stand much shaking without being damaged. We must hope that good luck will attend the future.
One achievement of the Lick telescope was to discover a new satellite of Jupiter in 1892. Of course the telescope could not have done it without the sharp eyes of Professor Barnard behind it; but we must give the telescope its share of credit, for very few others have managed to show the satellite even now we know it is there, and it is much easier to see something after it has been discovered than to find it in the first place.
It was a condition attached by Mr. James Lick to his gift that the public shall be allowed to use the telescope one night a week, and a great number of visitors go up the mountain on Saturday night just to get a few minutes looking through this great instrument. I am afraid many of them are disappointed, for they expect to see all that they have read about in books or seen pictures of. Now what is set down in books is often the outcome of very careful watching by skilled observers: it cannot be seen every moment, but only on favourable occasions: and without a "seeing eye" it cannot be seen at all. But some of the visitors perhaps only want to say they have looked through the telescope, without caring much what they see.
The largest lens in the world at present is that at the Yerkes Observatory near Chicago. Perhaps you would not call it very near, for it is about 70 miles away; but it was a millionaire of Chicago, Mr. Yerkes, who gave the money for it and wished