234 /. D. Hague on the Guano Islands of the Pacific Ocean. 



WURTZITE [C. Friedel, Comptes Rendus, lii, 983].— This new species is fro 

 a silver mine near Oruro, in Bolivia. It is a hexagonal sulphid of zinc, i^=omorph.y 





Bretthaupt has published in the Berg und Huttenma^ 



found that the radiated blende from A^lbergaria Velha in 

 for the hexagonal form of sulphid of zinc. 



Yrrao-TANTALiTE [p. 359, IV, IXj.-Analysis of amor 

 from Kararfvet by Chyder ' ^ - - - . -^ - - ■ 



3-27, t I-l 9, fl 4-83=99-12 — Kenngott's 'Uebertsicht, 1860, 93. 



ZiNCiTE [p. 110, II, III. IX].— The new synonym Ruby-Zinc has been proposed 



ZlEOON [p. 195, IV].—] 



During a few years past tbe attention of & 

 agriculturists has been called to some varieties of Phospbai';- 

 Guano found on several small islands of the tropical Pacific ana 

 imported to this country and to Europe under the name o 

 "American Guano." ^ 



The principal ingredient of these guanos is the phosphate o^ 

 lime, with which is c ' ' ' ' ' ' " "~^ 



