INDEX. 469 



Page. 



Tryon, George W. Specimens referred to 28 



Tubes. Cause of breaking of glass 404 



Ulke, H. Specimens referred to 28 



Vaillaut, M. On horary variations of barometer 413 



Van Nostrand, II. Aid to explorations -i 27 



Vitality. Researches by Higgius 379 



Von Frantzius, Di". A. Explorations by 27 



Wallach, Hon. Richard. Acts of as regent 72,73,74,76,78,79 



Report of Executive Committee 65 



Wartman's chemical researches 295 



Physical researches 291 



Water. Fresh in salt 403 



Water-spoiits. Explanation of 410 



Wheatly, C. M. Aid to explorations 27 



Wheatstone's experiments on colors 213,232,244 



Whitney, Professor W. D. Articles referred to 31 



Whittlesey, Charles. On fresh-water glacial drift 18, 32 



Wernigk, Dr. Explorations by 27 



Wesley, William. Agent for exchange 26,38 



West Indies. Explorations in 27 



Wetherill, Professor C. M. Plan of research on the atmosphere 396 



Wilkes's exploring expedition 16 



Winds. Cause of change of direction of the 407 



Observations on 403,404,406 



Wood, Dr. H. C. On collecting myriapoda, «S:c 395 



Woodward, Dr. I. I, Articles referred to 31 



Wright, Charles. Explorations by 27 



Wyman, Professor J. Articles referred to ■ 31 



Younglove, A. E. Explorations by 27 



Yucatan. Explorations in 27 



Zantedeschi's experiments on colors 243 



Zeledon, A. Explorations by 27 



Zoology. Dr. Gosse's report on 293 



Zootrope. Description of 217 



