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Updated: May 10, 2025
Democritus and Epicurus, that the specular appearances are made by the subsistence of the images which flow from our eyes; these fall upon the mirror and remain, while the light returns to the eye. Any one may use these instances to explain the manner of seeing.
For, generally, a sunrise and a sunset ought to be seen from the valley, or at most horizontally. For, consider, it is not only the "specular mount," keeping watch and ward over a sort of trinity of oceans, and, by all tradition, the circumnavigator's gate of entrance to the Pacific, but also it is the temple of the god Terminus for all the Americas.
But for further Satisfaction, not having the Opportunity to Foliate those Plates, and so turn them into Looking-glasses, we Foliated a Plate of Muscovy Glass, and then laying on it a little Transparent Varnish of a Gold Colour, we expos'd it to the Sun-beams, so as to cast them upon a Body fit to receive them, on which the Reflected Light, appearing, as we expected, Yellow, manifested that Rebounding from the Specular part of the Selenitis, it was Ting'd in its return with the Colour of the Transparent Varnish through which it pass'd.
Diamond, sir, in extraordinary evidence! in conjunction with specular iron ore, commonly called the red haematite, and the ferrous carbonate, or spathic iron. You see her, sir? you see her?" Hogarth whispered: "Yes".
Poole's bearings, in consequence of the great deviation of the compass from its true point, and also to sketch in that isolated group of hills; but as he found the same irregularity in his compass, I did not trust to the bearings either he or Mr. Poole had taken. The rock of which that hill was composed is a compact sandstone, with blocks of specular iron ore scattered over it, highly magnetic.
This ore is of the specular and magnetic kind, yields sixty-five per cent. of iron of remarkable purity, is easily mined and transported to the Lake, and is shipped in vast quantities to the ports of Lake Erie, where it meets the coal of Ohio. At least ten companies are now engaged in its shipment, which has progressed thus far with great rapidity, doubling every year.
The townlet, capital of the 'comarca, fronted by its little Alameda and a strip of beach upon which I should prefer to debark, shows a tall factory-chimney, noting the sugar-works of Wilhabram Bros. The guide-books mention iron pyrites and specular iron in small quantities behind Ponta do Sol.
This level is marked by a projecting platform of reddish or yellow material, rich in specular iron, apparently part of the frothy scum which formed on the surface of the lava and adhered to the side of the basin at the moment of its being emptied.
Nowhere on earth do I know a more peopled plain than that plain of Arno in our own time, seen on a sunny autumn day, when the light glints clearly on each white villa and church and hamlet, from this specular mount of antique Fiesole.
I find obscure mention of the specular stone also to have been found and applied to this use in England, but in such doubtful sort as I dare not affirm it for certain. Nevertheless certain it is that antiquity used it before glass was known, under the name of selenites.
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