Dana's New "System of Mineralogy." 



Sixth Edition, 1892'; 1197 pp.; 1435 cuts; Price, $12.50. 



Important Announcement.^This great work is promised by the publishers 

 about May 15th. It is not a mere revision, but the entire work has been rewrit- 

 ten. It contains half more matter than the 5th edition, makes fundamental 

 changes in the classification, etc. Send for our full circular giving extended extracts 

 from (he preface, etc. We. offer the work for only $10.00 net, postage (40c.) or 

 express charges extra. The number of orders so far entrusted to us has far ex- 

 ceeded our most sanguine expectations, and still they are coming in. May we not 

 receive yours? 



MAMMOTH YESUYIANITE CRYSTALS. 



Eight enormous crystals of Vesuvianite have just .been received from our 

 Arkansas collector. They rauge in size from If inches in diameter up to 5 

 inches, and in weight from J lb. up to 2f lbs. ' We believe these are the largest 

 crystals of this interesting tetragonal mineral ever" found at any locality. As we 

 have so very few of them, send your orders soon. 



' Twin Rutiles, the best we have ever seen from Arkansas ; a small lot of both 

 groups and loose crystals. "• 



CHONDRODITE, TILLY FOSTER MINE. 



Mr.' Niven recently visited again this wonderful mine and secured a number of 

 the finest groups of brilliant Chondrodites we have ever had. . ; 



LAURIUM SM1THS0NITES. 



An unrivalled display of this rare and beautiful mineral is now to be seen iu 

 our store. Rich blues, greens, yellows, oranges, whites, drabs, etc.. at 25c. to 

 $2.50 for cabinet sizes and $3.50 to $20.00 for museum specimens. 



OTHER RECENT ADDITIONS. 



Rowlandite, the wonderful new Texas mineral, containing (according to Mr. 

 W. B. Hidden) no less than 12 new elements and whose spectrum embraces ) 0,000 

 lines ! ! ! A few type specimens, being all the available supply, at $5.00 to $20.00 

 each. 



Thorite and Orangite, a fine lot, 50c. to $5.00. 



Sicilian Sulphur, Hauerite, Melanophlogite, etc.; Arizona Vanadinite; 

 Elba Hematite, Twin Pyrites, etc. 



For many other new arrivals, see our recent " Bulletin," which will be sent free 

 on application. 



100 pages Illustrated Catalogue, 15c; cloth bound, 25c; Supplement "A", 2c 

 Circulars, free. 



G-EO. L. ENGLISH & CO., Mineralogists, 



733 & 735 BROADWAY, NEW YORK. 



