CHICO FORESTRY SUBSTATION, SACRAMENTO VALLEY. 335 



TABLE III. STATISTICS OF RECENTLY PLANTED DECIDUOUS TREES. 



The number of trees of the above species planted varies from two or 

 three in the arboretum to a hundred or more in forest form. All receive 

 cultivation to keep the weeds down and the surface mellow. The catal- 

 pas and tilias planted in 1895 were in blossom in May, 1898. The 

 white mulberries planted at the same time were bearing fruit. 



The English oaks (Q. peduncnlata) vary greatly in size and nature 

 of growth. Some are shrubby, branching near the ground, and 

 requiring free use of pruning knife to form a good trunk; others need 

 no assistance. The average height of the oaks planted in 1895 in mixed 

 forest is now 7 feet, well branched, and with trunks of 3 to 4 inches in 

 circumference. One oak planted in 1894, when 3 feet high, is now 13 

 feet high, with branches covering a circle 10 feet in diameter, and a 

 trunk circumference of 4^ inches. The spring growth of 1898 of such 

 a tree is from 6 to 12 inches on every branch. One tree planted in 1894 



