OF THE ANCRAM IRON WORKS. 291 



The chemical analysis of this substance made in 

 New York, has rendered it unnecessary for me to un- 

 dertake that which I proposed making. 1 shall 

 merely add a comparative view of the results of the 

 analyses, made upon the European and American. 



Bouesnel. Drappier. Berthier. Torrey. 



Oxide of Zinc 90. 1 94. 87. 93. 5 



Lead 6. 2. 4 4. 9 



Iron 1.6 2. 6 3. 6 3. 5 



Carbon 1. .5 .6 1.0 



Silex, earths, sand, Sec. 1. 8 3. 4 



100. 5 99. 5 99. 5 98. 



These analyses present a remarkable coincidence, 

 except in the presence of lead in the European, and 

 its absence in the American cadmia; but this differ- 

 ence is of no importance ; in Belgium Mr. Bouesnel 

 tells us that the iron ore is visibly intermixed with 

 lead ore, and this accounts for its existence in the cad- 

 mia; we are also told that lead is found there in the 

 furnaces below the metallic iron. It is not difficult to 

 account for the presence of zinc with the iron ore, 

 for in examining the ore bed at Salisbury, (14 miles 

 east of the furnace) we ascertained that the hematite 

 was found in the side of a hill, incumbent upon the 

 shist and, as it were, incased in the decomposed part 

 of it, and that the adjoining shist was very much 

 broken up and altered ; it does not appear that the 

 hematite is the result of infiltration alone, for masses 

 of micaceous iron ore are found connected with it, 

 which appear to indicate that it results in part, at least. 



