62 [ Assembly 



The work of the mill during the present week, if not interrupted 

 by accident, will considerably exceed the above. The total value of 

 the rails made last week, was $22,000, delivered in New York. 



One fact is worthy of notice, that the first two thousand tons 

 cost to make, $75 per ton. The cost was then brought down to $70 

 per ton, then $65per ton, and now the rails are produced for about $60 

 per ton, all the effect of experience and improved machinery. Still 

 further improvements will probably effect a further reduction in cost, 

 as the manufacture of rails is only about three years old in this coun- 

 try. 



Besides the works at Trenton, the Trenton Iron Co. own the fa- 

 mous i\ndover iron mine, which contains an inexhaustible supply of 

 the very best quality of ore, such as the finest quality of Swedish and 

 Russian iron is made from. They have just completed the largest 

 blast furnace in the country, near Easton,for the purpose of smelting 

 this ore into pig iron for the supply of the rolling mill at Trenton, and 

 a second one is now in process of completion, whenj the company 

 will manufacture from the ore all the way, twelve thousand tons of 

 rails per annum, it is believed at the lowest cost possible in this coun- 

 try, delivered on tide water, at the present prices of labor, and of a 

 quality superior to any heretofore made. 



B. AYCRIGG, Chairman. 



JVew-York, Oct. 18, 1848. 



