We have explained that in the Champagne it is the custom for the manufacturers of sparkling wine to purchase considerable quantities of grapes from the surrounding growers, and to press these themselves, or have them pressed under their own superintendence. At Saumur only those firms possessing vineyards make their own _vin brut_, the bulk of the wine used for conversion into sparkling wine being purchased from the neighbouring growers. On the newly-expressed must arriving at M. Ackerman-Laurance's cellars it is allowed to rest until the commencement of the ensuing year, when half of it is mixed with wine in stock belonging to last year's vintage, and the remaining half is reserved for mingling with the must of the ensuing vintage. The blending is accomplished in a couple of colossal vats hewn out of the rock, and coated on the inside with cement. Each of these vats is provided with 200 paddles for thoroughly mixing the wine, and with five pipes for drawing it off when the amalgamation is complete. Usually the cuvée will embrace 1600 hogsheads, or 80,000 gallons of wine, almost sufficient for half a million bottles. A fourth of this quantity can be mixed in each vat at a single operation, and this mixing is repeated again and again until the last gallon run off is of precisely the same type as the first. For the finer qualities of sparkling Saumur the proportion of wine from the black grapes to that from white is generally at the rate of three or four to one. For the inferior qualities more wine from white than from black grapes is invariably used. Only in the wine from white grapes is the effervescent principle retained to any particular extent; but, on the other hand, the wine from black grapes imparts both quality and vinous character to the blend. The blending having been satisfactorily accomplished, the wine is stored in casks, never perfectly filled, yet with their bungholes tightly closed, and slowly continues its fermentation, eating up its sugar, purging itself, and letting fall its lees. Three months later it is fined. It is rarely kept in the wood for more than a year, though sometimes the superior qualities remain for a couple of years in cask. Occasionally it is even bottled in the spring following the vintage; still, as a rule, the bottling of sparkling Saumur takes place during the ensuing summer months, when the temperature is at the highest, as this insures to it a greater degree of effervescence. At the time of bottling its saccharine strength is raised to a given degree by the addition of the finest sugar-candy, and henceforward the wine is subjected to precisely the same treatment as is pursued with regard to Champagne.