On the Establishment of Telegraphs, Sfc. 205 



universe, and enduring to the end of time ? Would not, 

 must not, the result be universal happiness ? 



To promote such contemplation, and such results from 

 it, is the chief object of the National Museum. » •- 



[To be continued.] 



XXXI. Project for the Establishment of Telegraphs on a 

 New Construction. By Capt. Past.ey, of the Royal 



Engineers* . 



\st. A Nocturnal Telegraph. 

 JLlAViNG found, on inquiry made about four years ago 

 into the progress of the telegraphic art, that no regular es- 

 tablishment of night-signals have yet been instituted, simi- 

 lar to that of the diurnal telegraphs in common use, so that 

 all correspondence of this nature is suspended during a 

 period when it may often be essentially necessary, I was in- 

 duced to form the following project for a Nocturnal Tele- 

 graph, which, together with the second plan that after- 

 wards occurred to me, my remaining upon foreign service 

 has hitherto prevented me from submitting to the atten- 

 tion of the public. ^ 



Naivre and Construction. 

 The proposed telegraph consists of six fixed lights, dis- 

 posed in two rows of three lights each, one row placed ex- 

 actly over the olherf. 



* * Communicated by the author. 



■f- There have been several nocturnal telegr?plis already proposed, some 

 with niore, some with fewer lights, some with one or more coloured lights ; 

 any, 'discussion ujioxi v/hich, or comparison of those schemes with my own,would 

 be improper, unless 1 v.'ere writing an essay on telegraphs: but it isripht for me 

 to acknowledge that there is one in tlie Naval Chronicle, proposed by Mr 

 M'Arthur, consisting of the same number of lights as mine, to which gentle- 

 man I must therefore resign the merit of first proposing a night telegraph 

 with six llgliis; but as the disposition of his lights, the object of his tele- 

 graph, (which is meant for ships,) its principle, its key, and, in short, every 

 thing else are quite different, there appeared to me, r.fter I saw his plan, suffi- 

 cient c'igiuality in my own, not to withhold it from publication on account 

 of tbit particular coincidence. If partial similarity were in all cases an objec- 

 tion, there would be an end to iniprovonient in th« arts, 



3 These 



