1916] Index to Volumes I to XXXI 213 



Wood, Thomas Fanning vol. page 

 A sketch of the botannical work of Rev. Moses Ashley 



Curtis, D.D 2 9 



Wilmington flora: a list of plants growing about Wil- 

 mington, N. C, with date of flowering, with map of 



New Hanover County (with G. McCarthy) 3 77 



Woody plants of Chapel Hill, Coker 19 42 



Yeopon leaves, caffein, Venable 1 35 



Yosemite and the big trees, Cokeb 25 131 



Zerban, Fritz 



Inactive thorium 20 57 



Zinc oxide, analysis of a deposit, Radcliffe 1 84 



Zinc in drinking water, Venable 1 47 



Zircon, quantitative analysis, Morehead 8 24 



Zircons, treatment in preparing pure zirconium oxychlo- 



ride, Venable 8 20 



Zirconates, Venable and Clarke 13 1 



Zirconium, preparation from zircons, Venable 8 20 



Zirconium, occurrence, Venable 8 74 



Zirconium, comparison of the methods of separation and 



estimation, Baskerville 10 45 



Zirconium chlorides, Venable 10 79 



Zirconium chlorides, improved method of preparing, Bas- 

 kerville 11 85 



Zirconium sulphite, Venable and Baskerville 12 I 16 



Zirconium chlorides, Venable 12 I 22 



Zirconium oxalates, Venable and Baskerville 14 4 



Zirconium halogen salts, Venable and Baskerville 14 12 



Zirconium, revision of atomic weight, Venable 14 37 



Zoology in America before the present period, Wilson 28 54 



