Palache. 1 



New Soda Amphibole 



191 



the writer that a name should be assigned it. He therefore pro- 

 poses for it the name of Crossite, which will serve to commemorate 

 the discovery of the mineral by Dr. Cross. 



CONCLUDING REMARKS. 



It is believed that the mineral here described is a type of much 

 of the blue amphibole of the Coast Ranges. The writer hopes in 

 the near future to extend his study of this and allied soda amphi- 

 boles of this region and determine, if possible, to what extent and 

 in what manner they vary, and what their distribution is. 



In conclusion the writer would express to Prof. A. C. Lawson, 

 under whose direction these investigations were carried out, his 

 sincere thanks for ever-ready advice and aid. He desires, also, 

 here to thank Mr. W. S. T. Smith for the chemical analysis here- 

 with presented, and Dr. H. Lenk, of Leipzig University, for kindly 

 aid rendered in the determination of some of the optical properties, 

 and in the calculation of the formula. 

 June 21, iSg^.. 



