In order to show how the extraction of flower-pomades is effected, we will take, as an example, 2 lbs. of French flower-pomade No. 18 and 3½ quarts of best alcohol.[14] This proportion yields a good and sufficiently strong extract for the preparation of _Extraits d'Odeurs_. It must, of course, be suited to the size of the extracting apparatus, 8 lbs. of flower-pomade and 14 quarts of alcohol being, for instance, taken, though that depends on the quantity of the respective extract required by the perfumer. It is, however, best that the apparatus should be as completely filled as possible so that it contains but little air. [14] By "best alcohol" is understood rectified alcohol of 95 to 97 per cent. The gaining of alcoholic extracts from flower-pomades is best effected in a special apparatus, one of the simplest kind for the purpose being shown at Fig. 25. [Illustration: FIG. 25.] It consists of two cylinders, _A_ and _A_{1}_ of stout sheet-iron provided with well-fitting lids. Through the centre of each lid passes a vertical iron shaft _a_ and _a_{1}_ which carries in the interior of the apparatus several horizontal arms _b_, _b_{1}_, _b_{2}_. These vertical shafts can be rapidly revolved by the horizontal shaft _c_. Before bringing the flower-pomade into the apparatus, it is melted in the water-bath at a temperature, which, under no conditions, should exceed 88.25° F. The alcohol is also heated to 88.25° F. and added to the melted pomade in the apparatus. The arms with which the vertical shaft is provided, keep the mass in the apparatus in constant motion and prevent the pomade from settling on the bottom. The apparatus is arranged to be driven either by hand or steam, a fly-wheel instead of a pulley, being in the first case provided at _g_.