462 CANADIAN LONGITUDES. 



were near them, begged tliat tbey would not discontinue their 

 manly sport, as I was sure that they would be careful not to do any 

 harm ; they promised to do so, and after they had finished the game 

 they went off and never more gave the least annoyance. That night 

 I got the instrument nicely adjusted, and after only one failure suc- 

 ceeded in sending and receiving signals to and from Quebec on July 

 Istj that gave a most satisfactory result. I left on the 5th for Quebec. 



In conclusion I may say that the ease and accuracy with which the 

 position of a place can now be fixed by means of the electric telegraph 

 renders it imperative that all those places which can avail themselves 

 of the use of the telegraph line, should have their longitudes deter- 

 mined at once, in order that a correct map of Canada may be pro- 

 duced. 



Subjoined I send you an abstract of the observations made. 

 I have the honor to be, Sir, 



Tour most obedient servant, 



E. D. ASHE. 



Abstract of the Telegraphic Observations determining the Longiti<,des of 

 several places in North America^ ly Lieut. E. D. Ashe, R.IS". 



Quebec, 21st September, ISSY. 

 The place of observation was the Observatory in Mann's Bastion, Citadel. 



H. m. 8. 

 By the signals sent from Quebec to Cambridge, the difference of lon- 

 gitude is shown to be 18 . 27 



And by the signals from Cambridge to Quebec 18 . 25 



Mean difference of longitude by the work of the 21st September. . . 18.26 •- 



Again on the 9th October:— 



By the signals sent from Quebec to Cambridge, <fec 18 .44 



By the signals from Cambridge te Quebec 18.33 



Mean difference of longitude by the work of the 9th October 18.38 



Mean of both nights' work : — 



Quebec Observatory west of Cambridge Observatory 18 . 32 



Longitude of Cambridge west of Greenwich, as communicated by 



Professor W. C. Bond 4 44 30. '70 



Longitude of Quebec Observatory , 4 44 49.02 



