Forest physiography; physiography of the United States and principles of soils in relation to forestry . ,^ although in many locahties within province, accordance of summit levels can not be3 observed because of (i) the complex nature of theS, later deformation that affected the ancient surface,^ (2) the volcanic outpourings that have in places obliterated the old relief, or (3) the presencei of unreduced or residual masses. This is true espe-c daily of the more elevated portions of the rangea where no recognizable flat-topped remnants of the^ original plateau are to be found.^ o

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Forest physiography; physiography of the United States and principles of soils in relation to forestry . ,^ although in many locahties within province, accordance of summit levels can not be3 observed because of (i) the complex nature of theS, later deformation that affected the ancient surface,^ (2) the volcanic outpourings that have in places obliterated the old relief, or (3) the presencei of unreduced or residual masses. This is true espe-c daily of the more elevated portions of the rangea where no recognizable flat-topped remnants of the^ original plateau are to be found.^ o ° 1 I. C. Russell, A Preliminary Paper on the Geology of the Cascade Mountains in Northern Washington, 20th Ann. Kept. U. S. , pt. 2, iSgg, p. 137- 2 Idem, p. 140. 3 Smith and Willis, The Physiography of the Cascades in CentralWashington, Prof. Paper U. S. Geol. Surv. No. 19, Plates 9 and 10, PP- 53-54- i I. C. Russell, A PreUminary Paper on the Geology of theCascade Mountains in Northern Washington, 20th Ann. Rept. U. S. Geol. Surv., pt. 2, p. 141. CASCADE AND SIERRA NEVADA MOUNTAINS 151. 152 FOREST PHYSIOGRAPHY

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry