KKLATJON (IF HKiH SCHOOLS T<> THK 



BIOL()(;iCAL SURVEY, 19it. 

 Ridhurdia, (irowth in Petiole of, 235. 

 Ridgely, D. C, 70. 

 Roberts, (ieo. L., 237. 

 Roy.se, Daniel, 274. 



SAI'ROLECNIA FKKAX, 2:!7. 



Salt, 170. 



Soc'tioning Wodly Tis.sucs, 2:J1. 



Silurian, 185. 



Smith, Alex., 2t;r>. 



Some Kvolution among Cacti, 2(i2. 



Some Queries Relative to Solanuni Dulta- 

 mara, 232. 



South American Characinidje, 22(5. 



Special Senses of Plants, the, 205. 



Sphagnacea-, ii7. 



Steam I'ipe, Value of, in Smoke-bo.x of the 

 Locomotive, 271. 



Stereoisonieri.sm, of the Hydrazones of Ben- 

 zoin, 2(iti. 



Stomates of Cycas, 2'>4. 



Stone, Building, 170. 



Strength of Timlier, Variation of, in Dill'er- 

 ent parts of the Cross-section, 2(i8. 



strychnine, Detection of in Exhumed Body, 

 2(i7. 



Suggestions for the Biological Survey, lul. 



TKRTIAKV ROCKS, hulurationof, in North- 

 eastern .Vrkansas, 21!). 

 J^! Tetra-hydro-aniline, 2ii6. 

 Thomas, .M. B., 16, 2.S9, 254. 

 Trees, Ash of, 239. 

 Turtles, Habits of, 224. 



U]>RKY, A. B., 221, 22(i, 229. 



fnderwood, L. M., 13, 20, 30, 251. 



Univalves, Fresh-water, 150. 



VAN M'YS, T. C, 2r.2, 265. 



Value of Steam Pipe in the Smoke liox of 

 the Locomotive, 271. 



Variations in Strength of Timber for Differ- 

 ent I'arts of the Cross-section, 2(i.s. 



Variations in the Color-pattern of Elhfodima 

 Cnprodes, 2ol. 



Viviparidic, (ieographic and Hypsometric 

 Distribution of, in the U. S., 22:>. 



WABASH COT'NTV, Fishes of, 229. 

 Wallace, W. ()., 7(J. 

 Ward, L. W., 223. 

 Webster, F. M., (i9. 

 White Clays of Indiana, 221. 

 Work of the Botanical Division of the Nat- 

 ural History Survey of Minnesota, 233. 

 Wright, J. S., 233, 234. 

 Z00L0(;Y, (57, 224. 



