Memoir of Thomas Drummond, R.E.,F.R.A.S., Under Secretary to the Lord Lieutenant of Ireland, 1835-1840 |
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Page 65
... given to the Ordnance officers by whom the survey was to be conducted ; and concluded with the hope , that the great national work which was projected " will be carried on with energy as well as with skill , and that it will , when ...
... given to the Ordnance officers by whom the survey was to be conducted ; and concluded with the hope , that the great national work which was projected " will be carried on with energy as well as with skill , and that it will , when ...
Page 66
... given him a bias towards this study . Be that as it may , Drum- mond prosecuted it with zeal , always on the alert in this field , as in every other , to make the knowledge he acquired available to the service . General Larcom states ...
... given him a bias towards this study . Be that as it may , Drum- mond prosecuted it with zeal , always on the alert in this field , as in every other , to make the knowledge he acquired available to the service . General Larcom states ...
Page 67
... given by the reflector . It was employed , during the operations alluded to , at Fairlight Down and Folkestone Hill , on the English coast ; at Cape Blancez and Montlambert , on the French coast ; the greatest distance at which it was ...
... given by the reflector . It was employed , during the operations alluded to , at Fairlight Down and Folkestone Hill , on the English coast ; at Cape Blancez and Montlambert , on the French coast ; the greatest distance at which it was ...
Page 68
... given to the light . This form of the focal light , it was mani- fest , neither could be obtained nor preserved when combustion was the source of light ; and it was chiefly this consideration . which then led me to attempt applying to ...
... given to the light . This form of the focal light , it was mani- fest , neither could be obtained nor preserved when combustion was the source of light ; and it was chiefly this consideration . which then led me to attempt applying to ...
Page 75
... given hour , and to guide the observer , one of the lamps formerly used , an Argand in a lighthouse reflector , was placed on the tower of Randalstown Church , which happened to be nearly in the line at fifteen miles . The time ...
... given hour , and to guide the observer , one of the lamps formerly used , an Argand in a lighthouse reflector , was placed on the tower of Randalstown Church , which happened to be nearly in the line at fifteen miles . The time ...
Other editions - View all
Memoir of Thomas Drummond, R. E. , F. R. A. S. , Under Secretary to the Lord ... John Ferguson McLennan No preview available - 2020 |
Memoir of Thomas Drummond, R. E., F. R. A.S., Under Secretary to the Lord ... John F. M'lennan No preview available - 2016 |
Common terms and phrases
Administration apparatus appears appointed Argand Argand burner Argand lamp bars became Bill boroughs Captain Catholics chief Colby Colonel Commissioners common considerable constables constabulary course Crown direction districts Drum Drummond light Dublin duties Edinburgh effect engaged England English Excellency experiments favour force Government heliostat honour House improvement inquiry interest Ireland Irish juries jurors justice labour land landlord Larcom letter light lighthouse lines Lord John Russell Lord Lieutenant Lord Melbourne Lord Morpeth Lord Normanby Lough Foyle magistrates Maziere Brady measure ment mond Morpeth mother object observation occasion officers organisation outrages Parliament party passed persons police political population present principle proceedings proposed question railways reflector Reform regard Report respect result Ribandism Roden Committee says Secretary Sir John society success Survey tanistry tenant Thomas Drummond tion Tipperary triangulation Trinity House Whigs whole Woolwich