Spur, 174. 



Spurge, 76. 



Spurred violets, 169. 



Squirrels, 42, I zo, I zi, I 25, 1 39- 



142, 156, 187. 

 Stag-horn sumac, 123. 

 Stamens, 78. 

 Starfish, 203, 204. 

 Star of Bethlehem, 56. 

 Stars, 128. 

 Stinging ants, 95. 

 St.-John's-wort, 63, 114, 149. 

 Storm, 205, 206. 

 Strand, 85, 89. 

 Strata, 179. 

 Strawberries, 57. 

 Stream, 48-50, 67, 169, 170, 



177, 178, 180-182, 187, 195. 

 Stridulating, 54. 

 Stumps, 114. 

 Sugar-maple, 124. 

 Sugar-pine, 185-187, 195. 

 Sumac, 3, 15, 68, 80, 82, 83, 88, 



123, 124. 

 Summer, 60, 66, 67, 70, 71, 126, 



152, 154, 168, 181, 207. 

 Sunflowers, 59, 122. 

 Sunrise, 194. 

 Sunset, 194, 199. 

 Surf, 7, 203, 207. 

 Swallows, 19, 25, 26. 

 Swamp milkweed, 72. 

 Swamps, 13, 15, 1 8-20, 31, 40, 



45,47,68,73, 113, 114, 



123, 125, 126, 134, 168. 

 Swan-song, 163. 



Swarming, 98. 

 Sweetbrier, I. 

 Sweet fern, i 27. 

 Swift, 22, 30. 

 Sylvan, 49. 



Tabriz, 1 26. 

 Tansy, 74. 

 Temperament, 43. 

 Temperate zone, 131. 

 Tendency, 97. 

 Tertiary animals, 131. 

 Thaw, 135, 151. 168. 

 Thicket, 16, 75, 118, I2z. 

 Thistle-down, 30, 64. 

 Thistles, 59,64, 74, 75, 135. 

 Thorax, 86, 95, loz, 105. 

 Thoreau, 177. 

 Thrasher, 49. 

 Thread. 84, 87, 88. 

 Thrushes, 8, 9, 16, 30, 42-46, 



48, 51, 62, 190. 

 Thunder-storm, 182. 

 Tide, 204. 

 Tiger, 199. 

 Timber, 181. 

 Timbre, 200. 

 Timothy, 64. 

 Toads, 19, 50, 132, 155. 

 Towhee, 182. 

 Track, 148, 156, 161, 162. 

 Trail. 177, 178, 183. 

 Trail-horse, 177. 

 Transmutations, 60. 

 Tree ferns, 117. 

 Tree-sparrows, 70, 155, 162. 



221 



