COURSE 19. PLUM CULTURE 



The plum as grown in California merits a place among the best 

 of fruits. The various types and varieties of plums are reviewed in 

 this course, together with general problems of growing and handling 

 the crop. Commercial prune production is given special attention. 



COURSE 20. CHERRY CULTURE 



This course is prepared for those who wish to know more of this 

 popular fruit. It discusses the splendid new varieties, the methods 

 used by nurserymen in producing different types of trees, the con- 

 ditions under which the various types thrive best, and how to plant, 

 prune, irrigate, and cultivate to produce the finest fruit. Those who 

 are growing cherries and have trouble in handling the crop will get 

 good suggestions from this course. The prospective grower will find 

 it a valuable guide. 



COURSE 21. WALNUT CULTURE 

 Prepared by R. E. SMITH, Professor of Plant Pathology. 

 The aim of this course is to give instruction in walnut culture in 

 the modern and somewhat changed aspects which the subject now 

 presents. Until very recently, all the walnut acreage of California 

 consisted of seedling trees in the southern part of the State. Recent 

 developments have consisted in the planting of grafted rather than 

 seedling trees, and in the extension of the industry in the State 

 towards the north. These conditions have brought into prominence 

 new and partially unsolved questions relating to character and selec- 

 tion of varieties, choice of root stocks, methods of propagation, 

 adaptation to localities, and other important considerations, all of 

 which are fully considered in this course. The walnut has possibilities 

 in the horticultural development of California far beyond the present 

 status and extent of the industry. 



COURSE 22. ALMOND CULTURE 



Prepared by W. T. CLARKE, Professor of Agricultural Extension 



and Superintendent of Farmers' Institutes and 



R. H. TAYLOR, Instructor in Pomology. 



The requirements of the almond in regard to soil and climate are 

 considered, with the adaptation of different varieties to various Cali- 

 fornia conditions. The planting, pruning, cultivation and general 

 care of the crop are treated in a simple, practical way. The handling 

 and marketing of the crop receive attention. 



