6 CONTENTS. 



The Longleaf Pine (I'inut paliistrit Miller). By CHARLES Monit, Ph. D. Continued. rge. 



Natural reproduction 64 



Forest management 64 



Com lii.sion 66 



Appendix. The naval store industry 67 



Resin , or crude turpentine 67 



Spirits of turpentine, or oil of turpentine 67 



I; os in. or colophony - liK 



Pine tar 68 



Common pitch 6X 



Historical remarks 68 



Turpentine orcharding in the forests of Lougleaf Pine 69 



Distillation 70 



Cost of establishing a plant and working the crops 71 



Effects of the production of naval stores upon the timber, the life of the tree, anil the conditions of 



the forest 72 



Longleaf Pine in highlands 73 



Additional notes on Longleaf Piue. By FILIBERT ROTH 74 



The Cuban Pine (Pinus helerophylla (Ell.) Sndw.). By CHARLES MOHR, Ph. D 77 



Introductory 79 



Geographical distribution 79 



Products 80 



Resinous products 80 



Classification and nomenclature 80 



Description and morphological characters 81 



Flowers 81 



The wood 83 



Progress of development 85 



Requirements for development 88 



Soil 88 



Additional notes on Cuban Pine. By FILIBERT UOTII 89 



The Shortleaf Pine (Pinus echinata Miller). By CHARLES MOHR, Ph. D 91 



Introductory 93 



Historical 93 



Geographical distribution 93 



Characteristics of distribution in different regions 94 



Products 99 



Nomenclature and classification 99 



Botanical description 101 



Leaves 101 



Flowers 101 



Cones 103 



Seed 103 



The wood 103 



Progress of development 104 



Conditions of development 107 



Soil and climate - 107 



Relation to light .and associated species 108 



Enemies 108 



Forest management 110 



Additional uotes on Shortleaf Pine. By FILIBERT ROTH Ill 



The Loblolly Pine (Pinus ta-da Linn.). By CHARLES MOHR, Ph. I> 113 



Introduction 115 



Historical 115 



Geographical distribution .and economic history 116 



Products 119 



Value and uses of the wood 119 



Resinous products 120 



Nomenclature and classification 121 



Botanical descript ion and morphology 121 



Root, stem, and branch system 121 



Leaves 1-3 



Floral organs 123 



The wood 125 



Progress of development 126 



Rate of growth l-*6 



