486 



INDEX. 



Van Horn, F. R., formulas of pearce- 



ite and polybasite, 40 ; cerussite 



twins, Mexico, 45. 

 Van Name, R. G., rates of solution 



of certain metals in dissolved iodine 



207. 

 Vererbungslehre, Haecker, 326. 

 Vibrations, sympathetic, of small 



amplitude, 231. 

 Virginia geol. survey, 477. 

 Volcanic phenomena, Schneider, 



323. 

 Von Engeln, O. D., mineral plant 



foods in soils, 350. 

 Von Zittell, K. A., Grundzttge der 



Palaontologie, 234. 



W 



Walcott, C. D., Cambrian mero- 

 stomata, 74; Cambrian faunas of 

 China, 822; middle Cambrian holo- 

 thurians, 322. 



Watkins, J. H., rutile and cyanite 

 from Virginia, 195. 



Watson, J., British and Foreign 

 Building Stones, 232. 



Watson, T. L., rutile and cyanite 



from Virginia, 195. 

 Waves, long, of quartz-mercury 



lamp, Rubens and von Baeyer, 67. 

 Wenrich, C. N., study of the time 



interval in a protective device, 269. 

 Wheeler, L. P., reflection of light at 



metal-liquid surfaces, 85. 

 Wieland, G. R., American fossil 



cycads, 133; Williamsonian tribe, 



433; cycadophytans. 473. 

 Williams, S. R., mercury air-pump, 



lo. 



Wright, G. F., Ice Age in North 

 America, 70. 



Xeromorphy, Dachnowski, 33. 



ZOOLOGY. 



Lepidoptera Phalsenae, 236. 

 Protistenkerne, Hartmann, 83. 



