=Salix= =34= =alba= =40=, 41 =alba= variety =vitellina= =40= =amygdaloides= =38=, 39, 300 =discolor= =43=, 44 =discolor= variety =eriocephala= =43= =fragilis= =40=, 42 =nigra= =36=, 37, 300 =nigra= variety =falcata= =38= Sassafras 163, 164, 298, 300 red 163 white 163 _Sassafras albida_ variety _glauca_ _166_ =officinale= =163=, 164 Sargent, C. S. 16 Service berry 177 =Simarubaceæ= =237= Sorrel tree 263, 264 Sour wood 263, 264 Specific gravity of some of the woods of Indiana 299 Stink tree 237 Sugar berry 151 Sugar, black 246 Sugar tree 248 Sycamore 5, 168, 169, 298, 300 Tamarack 26, 27, 300 =Taxodium distichum= =28=, 31, 297, 300