Curious proboscis of the Sphinx Convolvoli

Final cause of the resemblance of some flowers to insects, as the
Bee-orchis

In some plants of the class Tetradynamia, or Four Powers, the two shorter stamens, when at maturity, rise as high as the others

Ice in the caves on Teneriff, which were formerly hollowed by volcanic fires

Some parasites do not injure trees, as Tillandsia and Epidendrum

Mosses growing on trees injure them

Marriages of plants necessary to be celebrated in the air

Insects with legs on their backs

Scarcity of grain in wet seasons

Tartarian lamb; use of down on vegetables; air, glass, wax, and fat, are bad conductors of heat; snow does not moisten the living animals buried in it, illustrated by burning camphor in snow