And "desert" is not at all an inappropriate term for the country between Sauve and S. Hippolyte. It is a land of disintegrated rock, white as chalk, and assuming strange forms, fissured in parts vertically, in others horizontally, the wide desert growing nothing but aromatic herbs, as sage and juniper. The Vidourle sinks and flows underground. The ruins of a castle stand above the dry bed at a curve in the channel.
But even this desolate garigue has its use, as have those further south. It grows lavender, rosemary, thyme in abundance, savin, sage, savory; and the peasants collect these herbs and distil essences from them. To the fragrant essences is added bitter rue. The distillation takes place on the garigue by means of movable retorts that travel about from one place to another. Vast quantities of herbs are required for the purpose. Thus, to obtain one kilogramme of essence of thyme, it requires 400 kilogrammes of leaves, except in May, when the plant is in greatest vigour and most redolent, then only half that amount is required.
The great centre of the industry is Sommières to the south of Quissac, where the garigues are more extensive than near Sauve.
A great rivalry exists between the manufacturers of scents in this part of Languedoc and those of Provence. All have been hit alike of late years by the fabrication of scents out of coal tar, that seems as ready to produce sweet odours as it is to yield bright dyes. These deserts of limestone apparently grow nothing but what is fragrant. Their vegetation expires in sweet odours.
At S. Hippolyte-du-Fort the mountains draw near, terraced up for olives. The town with its three churches,