ocr., 1899. YELLOW PINE BELT, 35 
and ponderosa pines, while on the drier ground a little farther east 
the pines increase and the firs decrease or disappear. Most of the 
larger trees on the south and west slopes have been cut for lumber. A 
stump near McCloud Sawmill measures, at 6 feet above the ground, 8 
feet in diameter. 
INCENSE CEDAR (Libocedrus decurrens),—The incense cedar occurs 
in greater or less abundance in all parts of the ponderosa forest, on 
both dry and wet ground, and from the bottom of the valley at Sisson 
= 
Fia. 18.—Incense cedar on south slupe below Wagon Camp. 
up to the edge of the Shasta firs at Wagon Camp. But it is common- 
est near the cool east base of the Scott Mountains. In moist places 
the trees often grow in groups, but in the dry forest they are usually 
scattered at intervals among the pines. On Shasta the bark of the 
cedars is generally smooth and free from scales, except on the very 
youngest trees. In the more humid area between Scott Mountains and 
the coast the scaly bark persists for many years, so that the trunks of 
middle-aged trees look very different from those of corresponding size 
in the dry interior. 
