20 



Iron and Steel continued. 



Miscellaneous products in the smelting of iron ore in 



blast furnaces. 



Varieties of pig iron obtained by smelting British ores. 

 Foreign pig iron. 

 Ancient pig iron. 

 Spiegeleisen. 



Special crystallizations of iron. 

 Slags produced in the fining of pig iron to obtain 



wrought iron. 



Slags produced in the puddling furnace. 

 Slags from the re -heating furnace. 

 Special process in the production of iron. 

 Samples of wrought iron. 

 Special forms of iron. 

 Iron subjected to special treatment. 

 Special processes of steel production : 

 Bessemer process. 

 Thomas-Gilchrist process. 

 Siemens' process. 

 Beaton's process. 

 Price and Nicholson's process. 

 Parry's process. 



Process for refining iron for tin plates. 

 Polish methods of steel making. 

 Indian methods of steel and iron making. 

 Various forms of steel. 

 Foreign made steel. 

 Composite bars, &c. of separate layers of iron and 



steel. 



Irregularities in steel. 

 Iron and steel specially treated. 

 Special adaptations of iron and steel to various uses : 



Watchmakers' steel. 

 Defects in iron and steel. 

 Wearing and decay of iron. 



Miscellaneous. 



38. Collection of pure chemical elements, comprising 

 many of the rarer metals. 



This collection was prepared by his late Highness 

 Prince Louis Lucien Bonaparte, and bequeathed by him 

 to South Kensington Museum. The bequest was the 

 result of a promise made to Prof. Roberts- Austen on 

 the occasion of the Prince's visit to the Percy Metal- 

 lurgical Collection, November 1890. 



