106 UNIVERSITY OF CALIFORNIA EXPERIMENT STATION. 



TEMPERATURE RECORDS AT RANCHO CHICO Continued. 



STUDIES OF TREE GROWTH. 



The fitness of this district to rapid growth of trees is illustrated by 

 almost every measurement taken since the establishment of the station. 

 Cultivation has been given to all the trees when small. The larger 

 conifers now cover the ground so completely that cultivation is no longer 

 necessary or practicable. 



THE CONIFERS. 



The most striking feature of the substation consists of large pines, 

 cypresses, sequoias, and other conifers planted in blocks. The following 

 table shows the comparative growth of a few species: 



