Their fire had ceased entirely and all their energies seemed focused
Motionless, one eye only turned upon the crack, he focused
that one eye upon the head and eyes of the gaunt gutter-cat whose head had erupted into the crack like an apparition.
What it was, I did not know; yet there it must be, for there men focused
like buzzing flies about a honey pot.
But when they got their electric torches, and focused
them on the inert, black object, it was found to be a bear which had come to nose about the camp for dainty morsels.
The sun's heat is rarely strong enough to burn, even when it is focused
by dewdrops, as is sometimes the case in more tropical districts.