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sorry to lose it.” He was afterwards present at Waterloo, where he 
greatly distinguished himself, and where he had three horses shot 
under him. For his services during the war he received the Russian 
Order of St Waldemir, and the Dutch Order of Willems, and at 
home he was made a Companion of the Bath. 
During subsequent years he was appointed to employments of the 
highest importance at home and abroad, and it may be interesting to 
mention that his mind was first turned to the study of Geology 
while in the command of the Royal Staff Corps stationed at Hythe, 
in Kent. The corps was a scientific one, and had formed a museum 
of the various objects collected by its several detachments ; and in 
this way Lord Cathcart was led to take an interest in a subject to 
which he ever afterwards devoted niuch of his attention. In 1830 
he came to live in Edinburgh, and for some years was occupied 
by scientific pursuits. He attended lectures in the University ; he 
took an active concern in the proceedings of the Highland Society ; 
and of the Royal Society he was an assiduous and useful member, 
having read several papers which are published in its Transactions. 
In 1841 he discovered a new mineral — a sulphuret of cadmium — 
which was found in the course of excavating the Bishopton Tunnel, 
near Port Glasgow, and which received after him the name of Green- 
ockite. If his quick eye had not there detected it, it would probably 
have remained unknown, as it has not (I believe) been discovered 
elsewhere. It is a beautiful substance, that was entirely new to 
mineralogists. 
In 1837 Lord Cathcart had been appointed to the command of 
the forces in Scotland. In 1842 he was made a Lieutenant- 
General, and in 1845 he was sent out as Commander of the Forces 
in British North America. He held this appointment for several 
years in very difficult times, and for some period combined with it 
the civil government of Canada. In 1849 he returned home, but 
still continued to give the public the benefit of his services in 
various capacities. Latterly, he resided at his seat in Sussex, 
where he passed the last years of his life in a happy retirement, 
surrounded by his family, and finding an interesting occupation in 
the scientific pursuits which he had always loved so much. 
In 1858 his constitution gave way, and on the 16th July 1859 
he died peacefully, in the full possession of his faculties to the last. 
He was a man of powerful mind, which was improved by great 
