OUR FALL BULLETIN 



Just issued, is much the largest and most elaborately 

 illustrated bulletin we have ever published. Included in 

 its 44 pages are 40 cuts, many of them half-tones of 

 remarkable beauty. The very large number of accessions 

 to our stock during the past year is thus most vividly set 

 before our customers. The Bulletin also includes a com- 

 plete and thoroughly revised list of our enormous stock of 

 Minerals for Blowpipe Analysis, which department of our 

 business shows steady growth owing to the peculiar 

 excellence of our material and our low prices. If you 



have not received a copy of the Bulletin drop us a postal card and it will be sent 



to you by return mail. 



The Penfleld Contact Goniometers. 



In the September number of The Mineral Collector is an illustrated article, in 

 part reproduced in our Fall Bulletin, on two new forms of contact goniometer 

 recently devised and patented by Prof. Penfleld. We shall be pleased to send a 

 copy of the article to any one requesting it, and will send on approval, to any 

 reliable person, one of each of the forms of goniometer. Our opinion of the excel- 

 lence of the instruments is best proven by our initial order for 200 of them, and it 

 is a pleasure to note that nearly all this large number were disposed of during the 

 first month. Everyone studying crystallography should have one of these admir- 

 able instruments, which though sold at the low price of 50 cents each, or $5.00 per 

 dozen, is fully as accurate as an expensive brass goniometer. Teachers will find 

 their lectures on crystallography greatly aided if each of their students is supplied 

 with one. 



The Finest Coyellite Eyer Found. 



"We have just secured from Montana about 100 pounds of specimens of nearly 

 pure Covellite. This has always been a rare mineral and generally a dull and 

 unattractive one. These specimens, however, are peculiarly beautiful, possessing 

 a rich blackish-blue color and high metallic luster, and are much superior to any 

 we have previously had from this locality. 10c. to $2.50. 



Gemmy Violet Apatite Crystals. 



A score of very attractive little matrix specimens of violet apatite have just 

 arrived from Maine. 25c. to $5.00. 



An Important German Consignment 



Has just arrived and its most important specimens are mentioned in our Pall 

 Bulletin. We would call especial attention to the curious Calcite Bird's Nests 

 Dyscrasite, Argentopyrite, crystallized Hessite, Tetrahedrite Groups 

 and Blue Anhydrite. 



124-page Illustrated Catalogue, giving Dana Species number, hardness, specific 

 gravity, chemical composition and formula of every mineral, 25c. in paper- 

 50c. in cloth. 



44-page Illustrated Price. Lists, also Bulletins and Circulars free. 



GEO. L. ENGKLISH & CO., Mineralogists, 

 812 and 814 Greenwich Street (S. W. Corner of Jane Street), New York Citv. 



