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 66
On this subject his first chemical experiments were performed . Captain Dawson
recollects Drummond mentioning the idea when returning from the lecture , and
that on the way he purchased a blowpipe , charcoal , & c . That evening he set to
...
On this subject his first chemical experiments were performed . Captain Dawson
recollects Drummond mentioning the idea when returning from the lecture , and
that on the way he purchased a blowpipe , charcoal , & c . That evening he set to
...
Page 69
transmitted through apertures equal in diameter to the small sphere of the
different substances submitted to experiment . " The result of several trials made
at the commencement gave for Lime , Zirconia , Magnesia , 37 times , 31 16 4
reaso ns ...
transmitted through apertures equal in diameter to the small sphere of the
different substances submitted to experiment . " The result of several trials made
at the commencement gave for Lime , Zirconia , Magnesia , 37 times , 31 16 4
reaso ns ...
Page 70
I think it is certain that he was engaged in his experiment in the winter of 1823 ,
and probable that the fact was one of the reasons why Colby selected him to be
his right - hand man in his preparations for the Irish survey . The chief was
anxious ...
I think it is certain that he was engaged in his experiment in the winter of 1823 ,
and probable that the fact was one of the reasons why Colby selected him to be
his right - hand man in his preparations for the Irish survey . The chief was
anxious ...
Page 71
The utility of employing the sun ' s reflection as a point of observation being
established by the result of these experiments , the problem to which Drummond
addressed himself was to invent an instrument , simple in THE DRUMMOND
LIGHT ...
The utility of employing the sun ' s reflection as a point of observation being
established by the result of these experiments , the problem to which Drummond
addressed himself was to invent an instrument , simple in THE DRUMMOND
LIGHT ...
Page 80
In the course of his experiments , he devised a singular mode of bisecting a
reflected image of the surface — a ghost , as he called it ; but it did not help him to
any practical result . He at length , says General Larcom , abandoned the subject
...
In the course of his experiments , he devised a singular mode of bisecting a
reflected image of the surface — a ghost , as he called it ; but it did not help him to
any practical result . He at length , says General Larcom , abandoned the subject
...
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Bibliographic information
| Title | Memoir of Thomas Drummond, R.E.,F.R.A.S., Under Secretary to the Lord Lieutenant of Ireland, 1835-1840 |
| Author | John Ferguson McLennan |
| Publisher | Edmonston and Douglas, 1867 |
| Original from | Oxford University |
| Digitized | 16 Jun 2006 |
| Length | 475 pages |
| Export Citation | BiBTeX EndNote RefMan |