INDEX TO PART III 
Sweet Popper-bush, 117, 118. 
Viburnum, 114. 
Sweetleaf, 122. 
Swiss Stone-pine, 173. 
Sycamore, American, 139. 
Sycamore-maple, 86. 
Symplocos, 122. 
Syringa, 126. 
Table-Mountain Pine, 177. 
Tacamahac, 170. 
Tamarack, 188. 
Tamariscines, 68, ‘ 
Tamarisk, 69. 
Tamarix, 69. 
Tartarian Honeysuckle, 115. 
Maple, 88. 
Taxodium, 192. 
Tea Family, 69. 
Ternstremiacer, 69. 
Thorn, 104, 105. 
Thurber’s Japan Magnolia, 66. 
Thuya, 193, 194. 
Thuyopsis, 193. 
Tiger’s-tail Spruce, 180. 
Tilia, 72, 73. 
Tiliacesw, 72. 
Toothache-tree, 73. 
Torreya, 200. 
Tree Hibiscus, 71. 
Tree of Heaven, 76. 
Trefoil, 74. 
Tsuga, 182. 
Tulip-tree, 66. 
Tupelo, 113. 
Turkey Oak, 159. 
Ulmus, 133-135. 
Umbrella-pine, 191. 
Umbrella-tree, 65. 
Urticacesr, 133. 
Venetian Sumac, 91. 
Verbenacee, 129. 
Viburnum, 113, 114, 
Vine Maple, 88. 
Vitex, 129, 130. 
Wahoo, 78, 135. 
Walnut, 140, 141. 
Walnut Family, 140. 
Washington Thorn, 105. 
Water Ash, 124. 
Beech, 151. 
Locust, 96. 
Oak, 157. 
Weeping Ash, 125. 
Birch, 146. 
Elm, 134. 
Oak, 159. 
Willow, 164. 
White Ash, 123. 
Basswood, 73. 
Birch, 145, 146. 
Cedar, 194, 195. 
Elm, 134, 135. 
Fir, 186. 
Maple, 85. 
Mulberry, 138. 
Oak, 153, 154. 
Poplar, 168. 
Spruce, 179. 
Willow, 164. 
White-heart Hickory, 142. 
Whitewood, 72. 
Willow, American Bay, 164. 
Ash-colored, 167. 
Bay, 164, 165. 
Beaked, 166. 
Black, 163. 
Bog, 166. 
Brittle, 163. 
Crack, 163. 
Glaucous, 166. 
Goat, 166. 
Gray, 167. 
Heart-leaved, 165. 
Kilmarnock, 166. 
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