on, PLAIN 



face of the water, or covered at 

 high, and left dry at low, water, 

 is a reef, 8 ; the extremity of a rock, 

 r tinning out into the sea, is a 

 point, 9. 



Large bodies of water, which 

 occupy inland situations, and 

 have no direct communication 

 with the ocean, are lakes, 10. 



153. 



The Caspian (called also the Cas- 

 pian Sea), wnich is intermediate 

 between Europe and Asia, is the 

 greatest. It covers an area of 

 130,000 square miles, and is com- 

 monly called a sea ; its waters 

 are salt, but less so than those 

 of the ocean. The largest fresh- 

 water lakes are those of North 

 America, where there prevails a 

 complete system of lakes and 

 rivers. Lakes Superior, Huron, 

 Michigan, Erie, and Ontario are 

 the chief. The most important 

 lake in South America is Lake 

 Titicaca (tit -e-Jca'- ka) . The 

 largest lake in England is "Win- 

 dermere, in Cumberland, which 

 i3 ten and a-half miles long, 

 and one mile broad ; the largest 

 in Wales is the Lake Bala, or 

 Llywn Tegid, about four miles 

 long and two-thirds of a mile 

 broad. In Scotland, lakes or 

 lochs are very numerous. The 

 largest in Scotland, and also in 



TEACHING-. 23 



Great Britain, is Loch Lomond, 

 which : s twenty-four miles in 

 length, and seven in its greatest 

 breadth. The largest lake, or 

 lough, in Ireland is Lough Neagh, 

 being about eighteen miles in 

 length, and eleven or twelve in 

 width. The most picturesque 

 lakes in Great Britain are those 

 of Killarney. 



In hilly and mountainous 

 places sprinqs. 11, rise, and their 



159. 



" From a shady nook, by a mossy stone, 

 Midst ferns and brambles rudely grown, 

 By day or night unceasing still, 

 Hear the sound of the mountain rill, 

 Rippling, dripphng, rippling, drippling ! " 



waters flowing downwards, form 

 small rills, brooks, streams, or 

 rivulets, 12. 



Augmented by other rivulets, 

 on their way, called tributaries, 

 and swollen by occasional rains, 

 the waters form larger streams, 



160. 



12, and produce waterfalls, 13, 

 as they descend over slight ele- 



