If nothing else, all this upheaval had given him back his musical voice.
The disappearance of what still remains of them is accelerated not only by the general decrease of moisture, but also perhaps by the gradual upheaval of N.
This upheaval - the consequences of which have been felt even within the historic period, by the drainage of the formerly impracticable marshes of Novgorod and at the head of the Gulf of Finland - together with the destruction of forests (which must be considered, however, as a quite subordinate cause), contributes towards a decrease of precipitation over Russia and towards increased shallowness of her rivers.
At the same time, as the gradients are gradually increasing on account of the upheaval of the continent, the rivers dig their channels deeper and deeper.
Sweden, and the northern mountains of Finland a continuation of Kjolen (the Keel) which separate Sweden from Norway, while the other great line of upheaval of the old continent, which runs N.W.