112) Ona Rise of the Coast of the Firth of Forth. 
In conclusion, as some of the more widely known geological 
researches of the last two or three years have been directed 
to the history of primeval man, every additional fact that 
tends to place in a clearer light the relations of our race to 
the later physical changes of the land acquires at present a 
peculiar significance. The object of this paper has been to 
show that the last elevation of part of Britain has not only 
taken place since the island was inhabited by man, but even 
since it was invaded by the Romans. The extent of this up- 
heaval has been at one locality as much as 25 feet—a large 
amount of change to have taken place quietly and unob- 
served during a period of less than eighteen hundred years. 
In the centuries that preceded this elevation other changes 
of equal or even higher magnitude may have been going on, 
possibly with a still greater rapidity, after man had become 
an inhabitant of these islands. Some caution therefore is 
needed, lest the extent of the geological changes which he has 
witnessed should lead us to assign to man, as an inhabitant of 
Britain, a higher antiquity than he can justly claim. 
On Natro-boro-calcite and another Borate occurring in the 
Gypsum of Nova Scotia. By Henry How, Professor of 
Chemistry and Natural History, King’s College, Windsor, 
N.S. 
About three years and a half ago, I showed the existence of Natro- 
boro-calcite in the gypsum of Windsor, N.S.* I was not aware at 
that time that Dr Hayes of Boston, U.S., had announced his convic- 
tion} that the soda which had been attributed to this mineral was an 
impurity, and had given, as the true expression of the composition of 
the pure mineral, the formula CaO 2BO,+6 HO. Had I known 
this, I should have adverted to the probability of his mineral 
pears to have existed between the rate of submergence in the east of the coun- 
try and that in the west. During the Lower Carboniferous period (as I have 
shown elsewhere), the area of the Lothians probably subsided several thousand 
feet more than the district now occupied by the counties of Lanark and Ayr. 
—See Quart. Journ. Geol. Soc., vol. xvi. p. 312. 
* Edin. New Philosophical Journal, July 1857. Silliman, Sept. 1857. 
} Silliman, Nov. 1854, p. 95. 
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