. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Washington, D. C. PROFESSIONAL PAPER. April 7, 1916 FOREST PATHOLOGY IN FOREST REGULATION. By E. P. Meinecke, Forest Pathologist, Office of Investigations in Forest Pathology. CONTENTS. Page. Introduction 1 Regulation of yield 2 Working plans 2 Rotation 6 Cutting cycle 8 Cumulative risk 9 Period of transition 15 Condition of timber stock 16 Total loss 16 Inferior species 19 Methods of investigation 22 Choice of species and site 22 Field methods 23 Pathology of white fir 27 Description of areas 33 Methods of investigati
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Washington, D. C. PROFESSIONAL PAPER. April 7, 1916 FOREST PATHOLOGY IN FOREST REGULATION. By E. P. Meinecke, Forest Pathologist, Office of Investigations in Forest Pathology. CONTENTS. Page. Introduction 1 Regulation of yield 2 Working plans 2 Rotation 6 Cutting cycle 8 Cumulative risk 9 Period of transition 15 Condition of timber stock 16 Total loss 16 Inferior species 19 Methods of investigation 22 Choice of species and site 22 Field methods 23 Pathology of white fir 27 Description of areas 33 Methods of investigationâContinued. Local pathology of white fir 35 Tabulation of data 36 Condensation of data 41 Interpretation 46 Conclusions and outlook 53 Decay in relation to wounds 54 Forest regulation 54 Care of virgin forests 54 Forest regulation through timber sales 55 Marking 57 Pathological rotation and cutting cycles 59 Outlook 62 INTRODUCTION. At the time of the creation of the national forests in the United bee the Government very suddenly found itself confronted with the problem of organizing an enormous acreage of practically virgin timber. It was natural that American forestry turned to the expe- rience of the Old World for guidance in this huge task; it was quite natural that the present state of European forestry should have served as tin- idea] t be reached in. the shortest time possible. In organizing the administrative machinery, European precedent could }>e followed more or less closely, l>wi not so in almost all other phases of ! Excepl for certain mio factors and the develop- ment of modern machinery, conditions influencing the lumber industry in the United States are very dissimilar to those in the typical forest countries of centra] Europe. Our virgin forests them- i â -. ;' \ [., pathologj on fore I regulation, I â16 1. Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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