84 SELECT PLANTS FOR INDUSTRIAL CULTURE 



by the adipose or oleous substance, though the blossoms do 

 not come with it in direct contact ; fresh flowers are supplied 

 daily for weeks. The scent is finally withdrawn from its 

 matrix by maceration with pure alcohol. Purified Eucalyptus 

 oil can be used for diluting rose oil, when it is required for 

 the preparation of scented soap. 



Rosa Damascena, Miller. 



Orient. Allied to the preceding species, aud also largely 



used for the production of essential oil of roses. 







Rosa Gallica, Linne. 



The French or Dutch Rose. Middle and South Europe, 

 Orient. The intensely coloured buds of this species are par- 

 ticularly chosen for drying. These, however, may be got also 

 from other kinds of roses. 



Rosa Indica, Linne'. 



Noisette Rose. From Upper India to China and Japan. Some 

 roses of the sweetest scent are derived from this species. 



Rosa laevigata, Michaux. (R. Sinica, Aiton.) 



The Cherokee Rose. China and Japan. Considered one of 

 the best hedge-roses, and for that purpose much employed 

 in North America. It serves also well for bowers. Allied 

 to the foregoing species. Rosa rugosa, Thunberg, of Japan, 

 a large-fruited and large-leaved rose, is exceedingly well 

 adapted for garden hedges. 



Rosa moschata, Miller. 



North Africa and South Asia as far east as Japan. From 

 the flowers of this extremely tall climbing species also essen- 

 tial oil is obtained. The attar thus derived from roses of 

 not only different varieties, but even distinct species, must 

 necessarily be of various qualities. In the Balkan Mountains, 

 on basalt slopes facing south, the most odorous roses are pro- 

 duced. At Kesaulik rose-distillation is the main industry. 

 Shoots of rose-bushes are placed in trenches 3 feet deep and 

 5 feet apart. Irrigation promotes the growth. The gathering 

 commences in the third and lasts till about the fifteenth year 

 (Simmons) . Schlagintweit gives as the yield of attar in the 

 Balkan ranges -^^ of the petals in cool and -^^ in warm 

 weather by careful distillation and refrigeration. The pure 

 oil as a European commodity is worth from 20 to 23 per 

 pound. This is also the rose, according to Schlagintweit, used 



