INDEX. 461 



Page. 



Sitka, insects 169, 171 



Sltta canadensis 381 



Skunli cabbage 20, 28, 238 



Slate-colored junco 339, 368 



Sleepy catch-fly 240 



Slender-leaved droseia 241 



Small brown weasel 390, 393 



cranberry 29 



marsli bed-straw 246 



northern bog orchid 239 



round-leaved orchid 239 



Small-toothed aspen 14-17 



Smaller enchanter's nightshade 243 



purple-fringed orchid 239 



Snail ; 9-11, 19, 25, 31, 61, 68, 250 



Snakes 252, 329 



Snow bunting 338 



Snowfall 43 



Snowy owl , 338,353 



Soil 40, 41 



Solenius sp 319 



Solidago 11, 14, 20, 22, 25, 269 



juncea 247 



neglecta 65, 219, 247 



uliginosa 247 



virgaurea 222 



Solitary sandpiper .".90, 94, 109, 118, 138, 339, 346 



Somatochlora 305, 306 



elongata minor 264, 265 



linearis 306 



forcipata 306 



shurtleffl 19 



tenebrosa 306 



Song sparrow 17, 82, 86, 88, 89, 92-94, 102, 117, 123, 140, 141, 339, 308 



Sonoran 165, 167, 168, 177, 179, 181 



Sora 338 



Sorbus americana 226, 237 



South-southwestern province 1^1^ 



Southeastern humid hardwood forest area, insects 189 



province, central district, insects 171 



red squirrel 400 



Sowhug 249 



Sparrow •■ 98, 102-104, 108, 114-116, 348 



hawk! 82, 83, 85-87, 91, 99, 102, 103, 108, 109, 112, 115, 117, 348, 349, 353 



Spathyema foetida -33 



Spatulate-leaved sundew ■'^^ 



Species-forming areas ^°^ 



Speckled alder 21, 28, 226, 237 



Spermatophytes -' "^ 



Sphaeria 283 



Sphaerium striatimum • 34 



simile '■'" 



walken ^ ""' 



Sphaerophoria cylindrica '''^' 313 



Sphagnum 15-18, 21, 26, 27, 65, 81, 85, 87, 220, 221, 257 



girgensohnii Russ., var. molle Crev., palleus 229 



platyphyllum Sull., var., subsimplex Cdbg., glaucum 229 



robustum RI., var. gracile RI., paileus 229 



teres Aug., var. tenellum B., bicolor 229 



Sphagnum-cassandra ^^ 



Sptegidae 319 



Sphingidae '""' 



