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When these wonderful glasses were tested, they were found to represent one of the mildest corrections made by opticians; in fact, her eyes were above the average. Her precious glasses were practically window-glass. Much of each day had been spent in bed, and hot coffee and hot-water bottles were required to keep off the nerve-racking chills which otherwise followed each fainting spell.
"Why, Mr Forster, if you were not one of the greatest " "No, no, my dear," interrupted Nicholas, from extreme modesty, "I am not one of the greatest opticians of the present day; although, when I've made my improve " "Greatest opticians!" interrupted the lady. "One of the greatest fools, I meant!" "That's quite another thing, my dear; but "
Now, Tom, we want to get our finest polishing emery out of that mixture, and it will take an hour to form sixty-minute emery, the opticians call it; so while it is preparing, we'll go and have another turn at the speculum."
'Don't look so concerned. Who makes equatorials? This remark was like the drawing of a weir-hatch and she was speedily inundated with all she wished to know concerning astronomical opticians. When he had imparted the particulars he waited, manifestly burning to know whither these inquiries tended. 'I am not going to buy you one, she said gently. He looked as if he would faint. 'Certainly not.
The French opticians' rule of doubling the number of millimetres contained in the aperture of an instrument to find the highest magnifying power usually applicable to it, would give 3,600 as the maximum for the leviathan of Birr Castle; but in a climate like that of Ireland the occasions must be rare when even that limit can be reached.
A special optical laboratory was erected at the Pasadena headquarters of the Mount Wilson Observatory, and here the long task of grinding, figuring, and testing the mirror was successfully carried out by the observatory opticians. This operation, which is one of great delicacy, required years for its completion.
So the School of Education, now given equal rank with other professional schools of the university, must ere long be recognized, by virtue of the work thus forced upon it, as, in a very definite way, superior to them all in opportunity and responsibility. A Paper read before the 1914 meeting of the North Dakota State Association of Opticians.
Many opticians, indeed, quite despaired of ever being able to make a satisfactory refracting compound microscope, and some of them had taken up anew Sir Isaac Newton's suggestion in reference to a reflecting microscope.
The printer is, by the way, not the only artisan whose occupation phonography has destroyed. Since the disuse of print, opticians have mostly gone to the poor-house.
As was my wont on such occasions, I assembled together all the great electricians, scientific sun-attractors, mathematicians, oculists, opticians, and the heads of science generally; and, after many years, my own particular Star Instrument was constructed. Although this instrument is circular, and has numerous glasses, it differs materially from your telescopes.
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