228 SCIENCE PROGRESS. 



lakes. We have lakes of many kinds — the fenland meres, 

 the Norfolk Broads, the kettle-holes of our drift-covered 

 lowlands, the valley lakes of upland regions and the gloomy 

 tarns of the mountain recesses — all differing from one 

 another in many characteristics, but broadly grouped to- 

 gether under the one heading, "lake". Because some of 

 these have been accounted for, it by no means follows that the 

 origin of all has been explained, and the student of physical 

 Geography may well be occupied for many years to come in 

 working out problems connected with the Limnology of the 



British Isles. 



BIBLIOGRAPHY. 



(i) Ramsay, A. C. Quart. Joum. Geol. Soc, vol. xviii., p. 185. 



(2) DelabecQUE, a. Atlas des Lacs Francais, plate x. 



(3) Marr, J. E. The Tarns of Lakeland, Quart. Joum. Geol. 



Soc, vol. li., p. 35. Additional Notes on the Tarns of 

 Lakeland, /did., vol. Hi., p. 2. On the Lake Basins of 

 Lakeland, Proc. Geol. Assoc., vol. xiv., p. 273. The Water- 

 ways of English Lakeland, Geogr. Joum., vol. vii., p. 602. 



(4) Lewis, H. C. Glacial Geology oj Great Britain and Ireland, 



p. 44, 1894. 



(5) Ward, J. Clifton. On the Origin of some of the Lake 



Basins of Cumberland. Quart. Joum. Geol. Soc, vol. xxx., 

 p. 96, 1874. The Glaciation of the Southern Part of the 

 Lake District and the Glacial Origin of the Lakes of Cum- 

 berland and Westmorland. Quart. Joum. Geol. Soc, vol. 

 xxxi., p. 152, 1875. 



(6) Mill, H. R. Bathymetrical Survey of the English Lakes. 



Geogr. Joum., vol. vi., No. i, p. 46, No. 2, p. 135, 1895. 



(7) DELABECQUE, A. Les Lacs des Vosges. Coviptes Rendus 



de la Societe de Geographic, 1895. 



(8) JUDD, J. W. On the Origin of Lake Balaton in Hungary. 



Geol. Mag., Decade IL, vol. iii., p. 5. 



(9) Gregory, J. W. The Great Rift Valley, 1896. 



(10) Russell, L C. Geological History of Lake Lahontan. 



Mon. U.S. Geol. Survey, No. 9, 

 Gilbert, G. K. Lake Bonneville. Mon. U.S. Geol. Survey., 

 1890. 



(11) Spencer, J. W. Origin of the Basins of the Great Lakes of 



America. Quart. Joum. Geol. Soc, vol. xlvi., p. 523, 1890. 



(12) Watts, W. W. On some Tarns near Snowdon. Rep. Brit. 



Assoc, p. 404, 1895. 



(13) CUSHING, H. P. American Geologist, 1891. 



J. E. Marr. 



