104 



Larix, 92 



Leguminosffi,- ■ 8* 



Linden, i 82 



Liriodendrou, S8 



Locust, common, 64 



" Honey, 65 



" Thornlees, 66 



Magnoliaceas ^'^ 



Maple, 59 



Motive power, necessity of cheap, 30 



Necessity of trees, 3 



Oaks, 80 



OleaoEe, 68 



Peat 31 



Pines, 89 



Planting tree belts, 48 



" trees, time of, 49 



" time when, 50 



Plant the best trees, 53 



Poplars, 86 



Practice, suggestions for, 40 



Propagation of trees, , 46 



Querous, , 80 



Kailroads, consumption of wood, 25 



Kain affected by trees, '. 12 



Rosaoese, 63 



Salieacea;, , 86 



Seeds of Coniferse, how gathered 97 



Soil enriched by trees, 23 



Soil protected by trees 16 



Springs and streams affected-by trees, 12 



Spruces, 91 



State, its duty, 35 



Suggestions for practice, .' 40 



Summary view, , 23 



Taxodium, 96 



Tiliaceae,.! 62 



Trees affect springs, &c., 12 



" " electric currents, ' 22 



" " the winds 17 



Trees enrich the soil, 23 



" protect the soil, 15 



" purify the air, 23 



Tree-belts 40 47 



Trees classed by growth, 64 



Trees classed by value as fuel 66 



Trees, how propagated, 46 



Trees, when to plant 50 



Trees recommended for cultivation described 57 



Tulip tree 58 



UlmacesB, ijO 



Walnut, black, 74 ; whi Le, 73 ; European, ,, .'. 75 



Warnings of history, 4 



White wood .'...'. 68 



Willows, 86 



Winds affected by trees I7 



Wood affects freights, 30 33 



" effects on the country, 26 



general consumption of, , 24 



" consumed by railroads, 25 



