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 90
... experiments for working it out were refined and delicate . * " The mode adopted for equalising the rates of changing temperature in the two metals consisted in maintaining the surface of one of the bars , namely , that of the brass ...
... experiments for working it out were refined and delicate . * " The mode adopted for equalising the rates of changing temperature in the two metals consisted in maintaining the surface of one of the bars , namely , that of the brass ...
Page 91
... experiments till the requisite effect was obtained . This being done , the spaces covered with lamp - black were carefully marked , and the iron bars cleaned and revarnished , the same portions being again covered by the lamp - black ...
... experiments till the requisite effect was obtained . This being done , the spaces covered with lamp - black were carefully marked , and the iron bars cleaned and revarnished , the same portions being again covered by the lamp - black ...
Page 92
... experiments made on each bar for regu- lating the rates of changing temperature , ascertaining the rates , and determining the compensated points . These experiments , nearly ninety in number , were made between January 18 , 1827 , and ...
... experiments made on each bar for regu- lating the rates of changing temperature , ascertaining the rates , and determining the compensated points . These experiments , nearly ninety in number , were made between January 18 , 1827 , and ...
Page 93
... experiments made by Mr Drummond for effecting the compensations in the compensation - microscopes were of the same nature , and the general results arrived at are given in the paper compiled from the MSS . already referred to . The ...
... experiments made by Mr Drummond for effecting the compensations in the compensation - microscopes were of the same nature , and the general results arrived at are given in the paper compiled from the MSS . already referred to . The ...
Page 94
... experiments , the whole of the measuring bars with one another and with the Ordnance standard . These comparisons were , after the completion of the work , continued at intervals by Drummond and Murphy down till the autumn of 1829. The ...
... experiments , the whole of the measuring bars with one another and with the Ordnance standard . These comparisons were , after the completion of the work , continued at intervals by Drummond and Murphy down till the autumn of 1829. The ...
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 compensation considerable constables constabulary course crime 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 Althorp 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 question railways reflector regard Report respect result Ribandism Roden Committee says Secretary society Survey tanistry tenants Thomas Drummond tion Tipperary triangulation Trinity House whole Woolwich