434 



Index. 



PAGE. 



Velocity of chemical reactions 8 



Virginia, Trias of 222, 254 



Vitality of red blood-corpuscles, 



297—302 



Vivianite 5, 20, 28, 156 



Volborthite 134, 135, 136 



Wad 5, 19, 27, 28 



Warwickite ,65, 67, 71, 72, 75 



Washingtonite 67, 68 



Water-lime Group 124 



Werneritc 6, 21, 26, 28 



Whewellite 32 



PAGE. 



Willemite 2, 6, 21, 28 



Witherite 4, 7—14, 28 



Wollastonite 6, 21, 28 



Wulfenite 137 



Xanthitan 71 



Yttrotitanite ..65, 68, 71. 73 



Zinc 5, 16, 17, 25, 28 



Zincite 5, 19, 28 



Zircon 326, 351, 354 



Zoisite 318 



