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Those who traded in curiosities and objects of art liked him exceedingly, since he bought their wares without much bargaining. However, on one occasion he wished to purchase a telescope, and sent for a famous optician, who seized the opportunity to charge him an enormous price.

As early as the year 1590 the Dutch optician Zacharias Jensen placed a concave and a convex lens respectively at the ends of a tube about eighteen inches long, and used this instrument for the purpose of magnifying small objects producing, in short, a crude microscope.

Four out of five depositors when they take money to the bank come out examining their passbooks. That afternoon I followed several; of these I selected three; one was an optician and electrician, an old-established firm, doing a large business. Another was an East India importing house. The third was Green & Son, tailors.

So that, if by studying Roger Bacon's life or his books we could get into touch with his mind and acquire some of that special moving and inspiring quality of his, it would help us far more than would the mere knowledge of the optician.

"Look through it," he replied simply, still at work on some other apparatus he had brought. I looked. In spite of the smallness of the opening at the other end, I was amazed to find that I could see nearly the whole room on the other side of the wall. "It's a detectascope," he explained, "a tube with a fish-eye lens which I had an expert optician make for me." "A fish-eye lens?" I repeated. "Yes.

An able optician, named Nicol, cut a crystal of Iceland spar in two halves in a certain direction. He polished the severed surfaces, and reunited them by Canada balsam, the surface of union being so inclined to the beam traversing the spar that the ordinary ray, which is the most highly refracted, was totally reflected by the balsam, while the extraordinary ray was permitted to pass on.

He sported a monstrous walking stick, the handle of which was set with turquoises; he showed himself in the box occupied by an ultra-fashionable set known as the "Tigers," wearing a blue coat, adorned with golden buttons, "buttons," he said, "wrought by the hand of a fairy"; and he had a "divine lorgnette," which had been made for him by the optician of the Observatory.

The folk will take the law into their own hands. My windows will be broken, my doors battered in. And thou wilt be murdered and thrown into the canal." His lodger laughed. "And wherefore? An honest optician murdered! Go to, good friend!" "If thou hadst but sat at home, polishing thy spy-glasses instead of faring to Utrecht!

As soon as the spectacles were gone Nathanael recovered his equanimity again; and, bending his thoughts upon Clara, he clearly discerned that the gruesome incubus had proceeded only from himself, as also that Coppola was a right honest mechanician and optician, and far from being Coppelius's dreaded double and ghost And then, besides, none of the glasses which Coppola now placed on the table had anything at all singular about them, at least nothing so weird as the spectacles; so, in order to square accounts with himself, Nathanael now really determined to buy something of the man.

Those who traded in curiosities and objects of art liked him exceedingly, since he bought their wares without much bargaining. However, on one occasion he wished to purchase a telescope, and sent for a famous optician, who seized the opportunity to charge him an enormous price.