While the notes have been made short, they will, never- 

 theless, in most cases, cover the essential points in the methods 

 of raising and caring for the plants named, and be understood 

 by the average reader as easily as if they had been dealt with 

 in longer articles. Hitherto, the information available on the 

 subjects treated upon has, for the most part, been widely 

 scattered in numerous magazines and books, many of which 

 are expensive: and it is often found necessary to search 

 through a mass of technical details in order to find the re- 

 quired information. It is to be hoped that the present vol- 

 ume will, in great measure, reduce the Difficulties referred to, 

 and render the art of plant cultivation profitable and enjoy- 

 able to the many whose tastes are horticultural. 



GEORGE W. OLIVER. 

 Washington, October, 1912. 



