. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN No. 1064 Contribution from the Forest Servioe WILLIAM B. GREELEY, Forester. Washington, D. C. August 21, 1922 OLEORESIN PRODUCTION: A MICROSCOPIC STUDY OF THE EFFECTS PRODUCED ON THE WOODY TISSUES OF SOUTHERN PINES BY DIFFERENT METHODS OF TUR- PENTINING. By Eloise Gerry, Microscopist, Forest Products Laboratory, Madison, Wis. CONTENTS. The naval stores industry Purpose of the investigation Oleoresin Structure of wood of turpentine pines Methods of study Process of turpentining Page. 1 2 3 Page. Results obtaine
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN No. 1064 Contribution from the Forest Servioe WILLIAM B. GREELEY, Forester. Washington, D. C. August 21, 1922 OLEORESIN PRODUCTION: A MICROSCOPIC STUDY OF THE EFFECTS PRODUCED ON THE WOODY TISSUES OF SOUTHERN PINES BY DIFFERENT METHODS OF TUR- PENTINING. By Eloise Gerry, Microscopist, Forest Products Laboratory, Madison, Wis. CONTENTS. The naval stores industry Purpose of the investigation Oleoresin Structure of wood of turpentine pines Methods of study Process of turpentining Page. 1 2 3 Page. Results obtained by different methods 12 Chipping in the lightwood 31 Suggestions for future practice 33 Suggestions for future research 38 Summary 40 THE NAVAL STORES INDUSTRY. Naval stores is the name applied to the products obtained chiefly by distilling the oleoresin or gum which exudes from living pines when the wood is wounded. The turpentine and rosin thus obtained ACKNOWLEDGMENTS. The writer wishes to express her appreciation of the many courtesies; extended to her at the places visited in Mississippi, Louisiana, and Florida, and particularly to the fol- lowing for assistance given in obtaining specimens and information on methods and practices: The BogalUSa Turpentine Co., especially to Messrs. Adams, Kemp, A. T. Lewis, C C. Harding, and N. T. Dorsey; Mr. J. P. Fraim, of the Fernwood Lumber Co., Fernwood, ; Mr. .1. F. Payne, Gulfport, Miss. ; Mr. J. A. Taylor, of the Cillican-Chipley Co., the Doles Naval Stores Co., the Imperial Naval Stores Co., Poitevent & Favre, all of New Orleans, La.| tie- Consolidated DIaval Slores Co., of Jacksonville, Fla., especially Mr. McGarvej Cllne; Mr. C. a. Clark, of Daytona; Mr. D. N. Corbett, of Orlando; Mr. A. Oim; ;m>l Mr. \V. A. Sessoms, of I'. Fla. Assistance was nlso generously given by tiie organization of the Florida National Forest, especially Capt. I. F. Eldredge, Supervisor L, L. Bishop, Deputy Supervisor f. B. MeKee; also by
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