Tift. 7. 



dale may possibly represent the "combe" or longitudinal break of 

 the southern great Cumbrian anticlinal ; answering to the Keswick 

 valley in the north. C is the great Coniston fault ; H, the Hawks- 

 head fault, throwing down in an opposite direction ; and T is the 

 Troutbeck fault. Windermere lies in the line WW ; a position 

 analogous to the line CC of Fig. 6 — the "cluse" of the Alps. Its 

 structural relations are identical with those of the Lake of Annecy 

 on the one hand, and with those of Candlestick Moss (Fig. g) on 

 the other. Windermere lies in the hollow, or series of hollows, 

 conditioned primarily by the rupture of synclinal pits, where the 

 synclinal axes of crossing undulations cut one another. 



7. Laws conditioning the Origin of Basins. This then, I would 

 suggest, may afford us a rule for the conditions of origin of Lake- 

 basins, in those cases where they are not coincident with faults. 

 In a great number of cases, and those ranging over great differences 

 of dimension, Lake-basins lie at the intersection of synclinal axes. 



To this rule we might add two corollaries, First, that the size 

 of the Lake-basin is proportioned to the breadth of the waves. 

 Second, that the frequency of Lake-basins is proportioned to the 

 number of such intersections ; every intersection not necessarily 

 creating a basin, but affording the possibility of one ; while every 

 so-called Lake-basin may consist of two or more "deeps," or true 



