The idea of planting forest trees is steadily gaining ground, especially in Fresno, Tulare, and Mariposa Counties. The timber principally planted here is Blue Gum, (Eucalyptus globulus) and Locust; however, there is more of the former than the latter. The constructing of irrigating canals has wrought a revolution in agriculture in this section, and as the facilities for irrigation have increased there has been a corresponding increase in tree-planting. In a few years the vast plains, which have been heretofore comparatively treeless, will afford timber for fuel and lumber to succeeding generations.