i6 



anfc 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 sunloving nature, such as yucca, sunrose (Heliantliemum, 

 Oistus), rock cress (Arabia), savin, arid wild thyme are pref- 

 erable to all others. 



An excellent place for a rockery is a glen or ravine 



