The soil of the Champagne vineyards is chalk, with a mixture of silica and light clay, combined with a varying proportion of oxide of iron. The vines are almost invariably planted on rising ground, the lower slopes which usually escape the spring frosts producing the best wines. The new vines are placed very close together, there often being as many as six within a square yard. When two or three years old they are ready for the operation of provinage universally practised in the Champagne, and which consists in burying in a trench, from 6 to 8 inches deep, dug on one side of the plant, the two lowest buds of the two principal shoots, left when the vine was pruned for this especial purpose. The shoots thus laid underground are dressed with a light manure, and in course of time take root and form new vines, which bear during their second year. This operation is performed in the spring, and is annually repeated until the vine is five years old, the plants thus being in a state of continual progression, a system which accounts for the juvenescent aspect of the Champagne vineyards, where none of the wood of the vines showing aboveground is more than three years old. When the vine has attained its fifth year it is allowed to rest for a couple of years, and then the pruning is resumed, the shoots being dispersed in any direction throughout the vineyard. The plants remain in this condition henceforward, merely requiring to be renewed from time to time by judicious provining. [Illustration]