1623. The Fourth Degree
The fourth degree of maturity, or of Coction, is completely artificial, and is nothing more nor less than the change produced upon fruit by the aid of culinary heat.
1624. Maturity of Vegetation
We have already pointed out the first object necessary in the preservation of fruit, its maturity of vegetation, and we may apply the same principle to flowers or leaves which may be gathered for use.
1625. Flowers
The flowers ought to be gathered a day or two before the petals are ready to drop off spontaneously on the setting of the fruit: and the leaves must he plucked before the season has begun to rob them of their vegetable juices. The degree of heat necessary for the purpose of drying must next be considered, as it differs considerably with respect to different substances.