20 / GLAUCUS; OR, 
an earthquake; and when the strata fell together 
again, the portion at either end of the chasm, 
being perhaps crushed together with greater force, 
remained higher than the centre, and so the water 
lodged between them. Perhaps it was formed thus. 
You will at least agree that its formation must 
have been a grand sight enough, and one during 
which a spectator would have had some difficulty 
in keeping his footing. 
And when you learn that this conrulsion pro- 
bably took place at the bottom of an ocean hun- 
dreds of thousands of years ago, you have at least 
a few thoughts over which to ruminate, which will 
make you at once too busy to grumble, and ashamed 
to grumble. 
Yet, after all, I hardly think the lake was formed 
in this way, and suspect that it may have been dry 
for ages after it emerged from the primeval waves, 
and Snowdonia was a palm-fringed island in a 
tropic sea. Let us look the place over more care- 
fully. 
You see the lake is nearly circular; on the side 
