Show ftp JERE ERB Is an odd thing about lighthouses whenever science comes along baisy with an implored Imp loved light assi a new light lighthouse hoLse te Is not built for it it Is simply installed in the old one the axiom about new wine ine in old bottles does 7 not apply to new lights in old bid lighthouses at all the modern age of lighthouses was ushered in with the building of the third eddystone by john smeaton in the year 1769 according to an article on the subject in the edidon monthly this lighthouse was waa important for or several reasons in form and construction it was superior to the light lighthouses housea bf 6 the time and the illuminant though nothing better than two fifth pound tallow candles aggregating candle power afforded by the steadiness of 0 the name flame the possibility of future improvement pro through the use of devices to direct and concentrate the beams As in the organic bild there are creatures of a day while others like men enjoy a reasonable longevity so it is in the world of architectural construction st and lighthouses belong to the long lived ZI ilabe a be for one 0 f these a hundred ye years a r a I 1 Is s no great matter and thus it hap happens peris that many a modern lighthouse has MW seen been revolutionizing I 1 n g illuminants come and go and has itself profited by the latest lamp surgery performed w with I 1 t h ever increasing delicacy within I 1 its t 8 lantern whereby its ancient body has haa taken on new dignity and ca capability for its beneal cent task such a lighthouse may be seen at sandy hook tor for although the first of 0 these there structures to be erected in america was placed at the entrance of boston harbor as early as 1716 the new jersey lighthouse Is the oldest now la in existence upon our coasts at one time the illuminating material consisted of 36 lard oil candles at a later period oil burners were installed while during successive periods kerosene was used in an old type float lamp and electricity then in the experimental peri mental stage was adopted after this there was a recurrence to the oil lamp and at the present time incandescent vapor Is employed here it must be admitted that lighthouses when serving a double purpose have not always figured as temples to the gods tor for by the british who built this lighthouse and put it in commission in the year 1764 it was intended to serve also as a military prison it was constructed ted with a dungeon underneath and just years later in supplying a foundation for an iron stair stairway IN ay e evidence v I 1 of it its former use ire was as made apparent through the discovery of a vault containing a human skeleton this old lighthouse also had its secret underground passage the entrance to which was barred by an iron door located in a nearby near by hillside then too lu in this athla year of reconstruction the holes that were made in the sides of 0 the tower by cannon shots from british men of war were cemented so BO it if the tradition must connect lighthouses and temples the one at sandy ilo hook ok was certainly reared to moloch the god of war though in the past years it has lighted many a british ship on pacific errands into new york harbor with the growing complexity and advance toward perfection of lighthouse system lighthouse zones are established at varying distances from the land the character of the light whether double or single colored or white fixed flashing or intermittent being determined by the requirements of its position and the use to which it Is put as a signal while great elevation would seem a leading requirement it if a coast light Is to perform effective service it Is a positive disadvantage in certain localities and at certain seasons of 0 the year when as in st georges channel foggy weather Is the rule for the fog clouds cloude envelop the light and render it quite useless tor for the guidance of vessels below the tog fog light or occasional light at S south stack on the island of anglesea england was constructed to meet these conditions an inclined plane was excavated in the rock and upon this a tramway was laid the light being contained in a carriage which in clear weather meather was left at the summit of the incline r ff Z 1 I 1 1 4 Z tz WS 4 0 wt 1 e af ar Q I 1 V JW can be lowered to a position from which its beams may be directed over the sea at the lowest possible level the forward part of this lantern contains apparatus ot of three reflectors tors which being placed on a revolving plane having a reciprocal motion through the arc to be illuminated gives the characteristic of the main light tho the motion is produced by means ot of a powerful spring steels ledge lighthouse located in penobscot bay maine contains a powerful acetylene light having a candlepower candle power intensity and an optical range in clear weather of 0 12 V N W H za 6 X jt cal miles the installation comprises six A 50 accumulators with a flasher arranged to show enow single flashes and a one foot burner with a fourth or der lens the following years saw the introduction of electricity into a number of lighthouses most important and powerful of all lights was and still Is in this country at any rate the Nave navestad which in 1898 was provided with a five second white flash electric light the flash having a duration of 08 seconds its bivalve lens has a focal distance ot of like the new light installed at south foreland in 1904 electricity is now being used in the so called unattended lights lights of this description will upon the completion of the panama canal guide ships on their way through gatun galun lake in passing through the latter the canal makes eight turns some of these thesa being at a sharp angle the range lights are of reinforced concrete so placed in pairs that one towers above the other at a distance back of the lower one of several hundred feet the pilot will direct his course by keeping these two lights in line turning when the pair on the opposite shore appear in view these range towers rising to a height of about 60 feet are sometimes placed in the midst 0 of the dense tropical jungle that fringes the shores in a few ew ol of these compressed acetylene which will burn six months without atten aton la is the illuminant but the greatel number of the lighthouses axe are on a general electric light circuit As ab bott states in his recent work on pan ama the whole canal will be lighted with buoys beacons lighthouses and light posts |