"On yon summit I have fixed four mirrors similar to these.

When the sun can no longer be reflected from this pair, the first of the distant mirrors takes it up and shoots a beam of light over here.
When the sun passes from that, the second mirror is arranged to catch and transmit it, and so on to the fourth.

After that I bid good-bye to the sun, and light my lamp!" Nigel felt an almost irresistible tendency to smile at this, but the grave simplicity of the man forbade such familiarity.
"Look yonder," continued the hermit, sweeping one of his long arms towards Sumatra, "in that direction runs the line of volcanic disturbance--the fissure of which I have already spoken.

Focus this telescope to suit your sight.

Now, do you see the little island away there to the nor'-west ?" "Yes." "Well, that is _Varlaten_.