

ON TELEGRAPHIC COMMUNICATIONS. 181 



A more commodious, though less elegant form of the A ■**• «"*" 

 ' i" P ° . modiousbut 



same apparatus is shown in fig. 3. The syringe a is here i ess elegant 



placed horizontally, its point being turned up. ft is sol- form. 



dered into a vessel of japanned tin, and the glass e 9 which ia 



here globular, is laid loose on the japanned vessel d, which 



contains the liquor that surrounds the point of the syringe. 



This apparatus, fig. 3, is intended to be placed on a table 



when used. 



IV. 



On Telegraphic Communications, in a Letter from Richard 

 Lovell Edgeworth, Esq* M. R. I. A. 



To Mr. Nicholson, 

 sir, 



I, 

 N the second volume of your quarto Journal, yc*i have F^say on tele. 



given a summary of an essay on telegraphs, which I had graphs in the 



published in the Transactions of the Royal Irish Academy. 



The essay concluded in these words, page 324:—" The Telegraphic 



thins itself must sooner or later prevail, for utility convinces comrrmrticati- 



« r , our must be- 



and governs mankind ; and however inattention oY timidity come preva- 



may for a time impede its progress, 1 will venture to pre- lent ^ 

 diet, that it will at some future period be generally prac- 

 tised, not only in these islands, but that it will become a 

 means of communication between the most distant parts of 

 the world, wherever arts and sciences have civilized man- 

 kind." 



Since that time I have seen various inventions similar to Various inven- 

 each other for the purposes of telegraphic communication, tlons forthe 

 and in particular 1 have noticed one in your last number, 

 called a homogiaph. Now I actually practised such a con- 

 trivance twelve or thirteen years ago, and I had during last 

 month drawn up a detailed view of the scheme for the pur- 

 pose of recommending it, not for the navy, but for the army. 

 1 do not, however, by any means, wish to derogate from the 

 merit or the claims of the gallant officer, who serves his 

 country with so much energy both of body and mind, but 



to 



