. Geological magazine . ible that statements as to the occurrence of such changeshave been accepted on inadequate authority. The generally receivedopinion as to the present and past relationship of the Landwasserand the Landquart can certainly not be included in the last category,but neither can it, I think, be rightly placed in the first. The Landquart is a river of Northern Graubunden which now:flows from the glaciers of the Silvretta group northward and 260 A. V. Jennings—The Landtcasser and Landquart. westward through the fertile Pratigau to join the Ehine betweenChur and Ragaz. Near the v
. Geological magazine . ible that statements as to the occurrence of such changeshave been accepted on inadequate authority. The generally receivedopinion as to the present and past relationship of the Landwasserand the Landquart can certainly not be included in the last category,but neither can it, I think, be rightly placed in the first. The Landquart is a river of Northern Graubunden which now:flows from the glaciers of the Silvretta group northward and 260 A. V. Jennings—The Landtcasser and Landquart. westward through the fertile Pratigau to join the Ehine betweenChur and Ragaz. Near the village of Klosters, where the narrowervalley of its mountain course widens into the ampler trough of thePratigau, it receives two tributaries. From the north flows into itthe Schlappina, rising behind the rugged mass of the EasternEhatikon ; on the south opens a side valley, which, when followedup, is found to lead to the saddle that now closes the northern endof the famous valley of Davos. The stream which apparently. aecart£//ia ^ Pea/, //ci/n^ descends from this saddle proves to be formed by the union of two,one fronii the east and one from the west,^ but there is none flowingdirectly from the broad pine-clad divide between Wolfgang and theDrusatch Alp. On the south side of this curious Kulm lies thedeep Davoser See, and into the long, almost level alluvial areawhich succeeds it flow three rivers—the Fluela, the Dischma, andthe Sertig. The Fluela and the Dischma enter near together belowthe south end of the lake, and form, with the insignificant outflow ^ The streams are the Monchalpbach and the Stiitzbach ; the result of theirconfluence I hare called the Lareterbach, but find that on some maps it is called theStiitzbach down to Klosters. A. V. Jennings—The Landicasser and Landquart. 261 of the lake, the origin of the Landwasser. Five miles below thelake, but only at a level of thirty metres below its surface, theLandwasser is joined by the Sertig, which flows also no
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