u6 



■Rocfes anO Mater. 



mountain rill falling over a narrow ledge and forming 

 glassy sheets of water below, rivulets bursting forth among 

 stones and boulders, streams with pebbly bottom sur- 

 rounded by small bogs and meadows. 



To make this scenery attractive in a limited area re- 

 quires considerable skill and a thorough knowledge of the 

 materials used, whether it be plants or stones and building 

 materials, as also a taste cultivated by a close and intimate 

 study of nature. 



The site must be selected where the rocks and water 

 will be in entire harmony with the surroundings. If the 







■' 



FIQ. 63.— ROCKY SUMMIT OF A KNOlL. 



rockery is constructed on elevated ground, as shown in 

 Fig. 63, water is out of the question, and the work should 

 be of the most simple nature. A few rocks may rise in a 

 natural manner as if forming the skeleton of the hill. For 

 rockeries of this isolated kind plants of a rigid habit and of 

 a suuloving nature, such as yucca, sun rose (Helianthemum, 

 Cistus), rock cress (Ardbis), savin, and wild thyme are pref- 

 erable to all others. 



An excellent place for a rockery is a glen or ravine 



