334 



Index 



PAGE 



Water: 



Composition of - 85 



Compressibility of - 80 

 Electrolytic decomposi- 

 tion of - - 107 

 Maximum density of - 130 

 Waterston, J. - - 164 

 Watson, W. - - 81 

 Watt, J. - - 69, 70, 101-104 

 Composition of water - 85 

 Wedgwood, T. - - 172 

 Weights and measures, stan- 

 dards - -49,130,207,208 

 " Weismannism " - - 280 

 Weldon, Walter - 198 

 Weldon, W. R. F. - 277, 286 

 Wells, W. C. - - 176 

 Wernerian theory of geology 



310, 311 



Westbrook, W. - - 306 



Wheatstone, Sir C. - 147, 148 



Stereoscope invented 

 Spectrum analysis 

 Telegraphy - 



" Wheatstone bridge " 



Wheler, G. 



Whewell, W. - 



Wilcke, J. K. - 



Wilde, Dr. Henry 



Williams, Dr. - 



Williamson, A. M. 



Williamson, W. C. 



Willis, T. - 



Willughby, F. - 



148 

 154 

 188 

 147 

 78 

 119, 223, 271 



59, 192 



- 314 



- 146 

 - 305, 316 



- 297 

 232, 259, 261 



PAGE 



Wilson, A. - - - 176 



Witham - - 316 



Wollaston, F. J. H. - - 86 

 Wollaston, W. H. : 



Chemical discoveries - 145 



Spectrum analysis 153, 155 



Photography - - 172 



Woodhouse, R. - 117 



Wooldridge - - 305 



Woolf, A. - 105 



Worcester, Marquis of, Edw. 



Somerset - - 99, 100 



Wortley, Col. Stuart - - 173 



Wotton, E. - - 220, 257 



Wren, Sir C. - - 51, 297 



Wright, Edward - - 48 



Wright, E. P. - - - 316 



Xenon, discovery of - - 181 



X-ray, discovery of - - 183 



See also Radio-activity. 



Young, T. - 18, 37, 119, 153, 213 

 Brougham's criticism of 20 

 Explanation of super- 

 numerary rainbows - 120 

 Physiological optics 128, 299 



Zoology - 



256-293 



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