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 59
... Coolin range , which Captain Colby had singled out for the purpose on the former occasion ; and this time our efforts were crowned with success . Having built a large pile upon it , we returned to THE ORDNANCE SURVEY . 59.
... Coolin range , which Captain Colby had singled out for the purpose on the former occasion ; and this time our efforts were crowned with success . Having built a large pile upon it , we returned to THE ORDNANCE SURVEY . 59.
Page 63
... Colby in carrying a chain of triangles northwards towards Cambridge , for the purpose of fixing upon the position * Memoir of Colby , p . 63 . for its observatory . On this occasion Wrotham Hill , SURVEY OPERATIONS . 63.
... Colby in carrying a chain of triangles northwards towards Cambridge , for the purpose of fixing upon the position * Memoir of Colby , p . 63 . for its observatory . On this occasion Wrotham Hill , SURVEY OPERATIONS . 63.
Page 64
John Ferguson McLennan. for its observatory . On this occasion Wrotham Hill , in Kent , and Leith Hill , in Surrey , were to be observed from Little Berkhampstead in Hertfordshire . There was great difficulty experienced in making these ...
John Ferguson McLennan. for its observatory . On this occasion Wrotham Hill , in Kent , and Leith Hill , in Surrey , were to be observed from Little Berkhampstead in Hertfordshire . There was great difficulty experienced in making these ...
Page 67
... occasions , but especially in carrying his triangles across the Channel to the French coast , made use of Bengal and white lights prepared at the Royal Arsenal ; for these , parabolic re- flectors , similar to those with which our ...
... occasions , but especially in carrying his triangles across the Channel to the French coast , made use of Bengal and white lights prepared at the Royal Arsenal ; for these , parabolic re- flectors , similar to those with which our ...
Page 71
... occasions to the same method , and with equal success . I allude to Leith Hill , near Dorking , in Surrey , and Wrotham Hill , in Kent , stations which it was of the utmost consequence to observe from Berkhampstead Tower , near Hertford ...
... occasions to the same method , and with equal success . I allude to Leith Hill , near Dorking , in Surrey , and Wrotham Hill , in Kent , stations which it was of the utmost consequence to observe from Berkhampstead Tower , near Hertford ...
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