EnvironmentCan We Grow Our Own Rubber?Guayule, a Native American Rubber-producing Shrub, Is Being Cultivated on a Large Scale in California.By D. T. MacDougal on July 1, 1928AdvertisementABOUT THE AUTHOR(S)Recent Articles by D. T. MacDougalSunburn in the DarkThe Hydrostatic System of TreesHugo de Vries