206 
fascinating features of rock gardening. Connoisseurs get un- 
bounded pleasure from the successful cultivation of such treasures 
as Anemone vernalis, Campanula Allionii, Gentiana verna, Saxi- 
fraga Boydii, Diapensia lapponica, Asperula suberosa, Ramondia 
pyrenaica, Rhododendron lapponicum and others of a similar na- 
ture. Those who have mastered the cultivation of the easily grown 
Fic. 11. Mossy Saxifrages. (2604) 
alpines should try the more difficult subjects. Many helpful hints 
on their cultivation can be obtained from such books as, Adven- 
tures in My Garden and Rock Garden, and Pleasures and Problems 
of a Rock Garden, by Louise Beebe Wilder; The Rock Garden 
Primer, by Archie Thornton; My Rock Garden and The English 
Rock Garden, by Reginald Farrer; Rock Garden and Alpine 
Plants, by Henri Correvon, 
