Hyacinth, or Hyacinthus, L. a genus of perennial plants, comprising 16 species, one of which is indigenous; namely, the non-scriptus, English Hyacinth, or Harebell Hyacinth (Salla nutans, or Wild Hyacinth of Dr. Smith) ; itgrows in woods and hedges, where it flowers in the month of May. The fresh roots of this plant are poisonous ; but it appears from experiments, that they may be advantageously converted into starch.

The most admired of the exotic species is the Orientalis, or Eastern Hyacinth, which is cultivated to a great extent, and with success, by the florists of Holland, whence it has been lately imported. It is one of the most odoriferous flowers, and has several hundred varieties, the price of which is from threepence to 20l. or 301. per root!

The hyacinth is a hardy plant, and will prosper in any soil, though the more delicate varieties require to be sheltered during the severity of winter. They may be propagated either from the seed, or by planting off-sets from the roots, in autumn; in which latter case the bulbs ought to be previously cleaned and dried.

Hyacinth. - In a late volume of the " Annales de Chimie, " M. Leroux has announced the discovery of a gummy substance, contained in the roots of the Hyacin-thus non-scriptus ; which is an indigenous vegetable. This substance appeared, on examination, to possess similar properties with the generality of gums, and a considerable portion of farinaceous matter ; which may, by proper management, be extracted. As it abounds in the bulbous roots of the Hyacinth, so as to render it an object of attention, M. LeRoux conceives that it might be advantageously converted into Starch.