CHAPTER VII.--INSTRUMENTS OF THE INSECT: AND ITS CHEMICAL ENERGIES,

AS IN THE COCHINEAL AND THE CANTHARIDES.

Hitherto the writer has treated only of the silk of the bombyx, 193 He now commends the culture of other silk-spinning species, 194 And is led to speak of the ingenious instruments with which insects are provided, 194 And of their general powers and properties, 195 Something is said about their weapons, 196 And the malalis is spoken of, 197