32 SCIENTIFIC BOOKS PUBLISHED BY 



The Useful Metals and their Alloys ; 

 Scoffren, Truran, and others. 



Fifth Edition. 



8vo. Half calf. $3.75. 



THE USEFUL METALS AND THEIR ALLOYS, incliding 

 MINING VENTILATION, MINING JURISPRUDENCE 

 AND METALLURGIC CHEMISTRY employed in the conver- 

 sion of IRON, COPPER, TIN, ZINC, ANTIMONY, AND 

 LEAD ORES, with their applications to THE INDUSTRIAL 

 ARTS. By JOHN SCOFFKEN, WILLIAM TEHRAN, WILLIAM CLAY, 



ROBEET OXLAND, WlLLIAM EAIEBAIEN, W. C. AlTKIN, and WlL- 

 LIAM VOSE PlCKETT. ' 



Collins' Useful Alloys. 



18mo. Flexible. 75 cents. 



THE PRIVATE BOOK OF USEFUL ALLOYS and Memo- 

 randa for Goldsmiths, Jewellers, etc. By JAMES E. COLLINS 



This little book is compiled from notes made by the Author from the 

 papers of one of the largest and most eminent Manufacturing Goldsmiths and 

 Jewellers in this country, and as the firm is now no longer in existence, and the 

 Author is at present engaged in some other undertaking, he now offers to the 

 public the benefit of his experience, and in so doing he begs to state that all 

 the alloys, etc., given in these pages may be confidently relied on as being 

 thoroughly practicable. 



The Memoranda and Receipts throughout this book are also compiled 

 from practice, and will no doubt be found, useful to the practical jeweller. 

 Shirley, July, 1871. 



Joynsons Metals Used in Construction. 



12mo. Cloth. 75 cents. 



THE METALS USED IN CONSTKUCTION : Iron, Steel, 

 Bessemer Metal, etc., etc. By FEANCIS HEEBEET JOYNSON. Il- 

 lustrated. 



" In the interests of practical science, we are bound to notice this work ; 

 and to those who wish further information, we should say, buy it ; and the 

 outlay, we honestly believe, will be considered well spent." Scientific 



