M. Leonel Reynard informs us that we are likewise wrong in attributing to Argand the idea of a lamp with a double current of air. It is to TeulÈre that it should, in the main, be attributed. However, this engineer, who has asserted the priority of his claim to the invention of the reflectors, and the system of eclipses, has not insisted upon that of the lamp. He limits himself to saying that Argand entertained the same idea as himself, and derived great profit from it. “On Tuesday night the Scurdyness Lighthouse, at the entrance to Montrose Harbour, was lit up for the first time, amid the rejoicings of the people of Montrose and Ferryden. From early morning the vessels in the harbour displayed numerous flags, and more than the usual stir was observable among the villagers on the opposite side of the river. Indeed, seldom have the Ferryden people manifested so much enthusiasm; but it is seldom that they have so much cause to rejoice. The want of a light at the Scurdyness has long been felt by the seafaring community. The rock-bound shore stretching between the Bell Rock and the Girdleness—a distance of nearly fifty miles—is perhaps one of the most dangerous parts of the east coast of Scotland, and has been the scene of numerous shipwrecks and great loss of life. At no point within these limits have so many disasters occurred as at the entrance to Montrose Harbour, now fortunately protected by the Scurdyness Light. Bounded on the one side by large outlying and in some instances hidden rocks, and on the other by a long stretch of sandy shore, whilst the channel itself is extremely narrow, the entrance to Montrose Harbour is very difficult for navigation, and particularly so when the weather is boisterous. Moreover, on the north side, and within a very short distance of the newly-erected lighthouse, is the Annat—a sandbank on which many vessels have been wrecked in attempting to make the harbour. The necessity, therefore, for a light on Scurdyness was very great, and has been long and deeply felt. Situated at the Point, on the southern side of the channel, the lighthouse, a substantial building, commands a clear-weather range of seventeen nautical miles. It is built on solid rock, the foundation being of stones from Benholm Quarry, and the tower itself of white brick. The entire height of the tower is about 100 feet and the lighthouse about 30 feet—in all, 130 feet from base to vane. The diameter at the base is 23 feet 2 inches, whilst at the top it is 16 feet. A spiral stair of about 140 steps leads to the top of the tower, after which the ascent to the various stories is by ladders. There is a room near the top, in which are deposited the stores. The light is fixed and white, of the second order (dioptric), and the mechanism for supplying the lamp with oil is of the most interesting nature. Oil is pumped up to the wick by clock-work; and an alarm sounds during the whole time the machine is in motion, so that any irregularity is immediately announced to the attendant. The light will be seen from about S. W. ¼ S., round by the east to about N.E. ¼ N., or as far as the land will permit. The bearings are magnetic, and from the vessel. A light of weaker power will be shown from the channel towards Montrose Harbour.” Transcriber’s notes: In the text version, italics are represented by _underscores_, and bold and black letter text by =equals= symbols. Superscripts are represented by ^{} and subscripts by _{} Missing or incorrect punctuation has been repaired. Greek words in the text can be rendered onto ascii as follows:—
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