THE BROAD-SCLEROPHYLL VEGETATION OF CALIFORNIA. 45 



17.2 per cent. The absolute minimum was 0.5 per cent on October 

 31. We next observe the gradual dropping of the three lines, 

 beginning with the end of the spring rains, continuing at a constantly 

 decreasing rate through the dry season of summer and fall, and 



Fig. 8. — Soil moisture at weekly intervals for one year, in chaparral (station 10) and broad- 

 sclerophyll forest (station 7), at depths of 10, 50, and 100 cm. Jasper Ridge. The 

 wilting coefficients for the 10 cm. and 100 cm. depths have been added for each 

 station. 



