the difference between the dew point and temperature had
increased from 7.5 to 17 degs.

On another occasion I started early and walked to the
Gavia, or topsail mountain. The air was delightfully cool
and fragrant; and the drops of dew still glittered on the
leaves of the large liliaceous plants, which shaded the
streamlets of clear water. Sitting down on a block of granite,
it was delightful to watch the various insects and birds as
they flew past. The humming-bird seems particularly fond of
such shady retired spots. Whenever I saw these little creatures
buzzing round a flower, with their wings vibrating so
rapidly as to be scarcely visible, I was reminded of the
sphinx moths: their movements and habits are indeed in
many respects very similar.

Following a pathway, I entered a noble forest, and from
a height of five or six hundred feet, one of those splendid
views was presented, which are so common on every side
of Rio. At this elevation the landscape attains its most
brilliant tint; and every form, every shade, so completely
surpasses in magnificence all that the European has ever
beheld in his own country, that he knows not how to express
his feelings. The general effect frequently recalled
to my mind the gayest scenery of the Opera-house or the
great theatres. I never returned from these excursions
empty-handed. This day I found a specimen of a curious
fungus, called Hymenophallus. Most people know the English
Phallus, which in autumn taints the air with its odious
smell: this, however, as the entomologist is aware, is, to