STUDIES AND PUBLICATIONS ABROAD
metal, as here upon iron, into three divisions. The first division will comprise in particular the processes and methods of smelting that are in use in various parts of Europe; and as the methods in vogue in Sweden have come more under my own observation than those employed in other countries, so I dwell upon them longer in proportion. The second division will give the various methods of assaying; by which the ore is tried in small fires, or assaying furnaces, and its composition examined, in order that it may be the better proceeded with on a large scale. The third division will embrace an account of all the different chemical processes that have fallen under my notice, with the characteristics of each; and will deliver numerous experiments and observations which have been made on one and the same metal in the course of solution, crystallization, precipitation, and other chemical changes."
The great learning and practical value of the volumes on metallurgy was at once admitted. The Academy of Sciences at Paris translated and published the treatise on Iron. In England the work was cited as of the highest authority. In Russia its author was elected corresponding mem-
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