ASSAYING -f>699 



668 MISCELLANEOUS. 



6681 Moride, E. Traite pratique de savonnerie. Paris 1888. 



6687 Lunge, Q. Treatise on the distillation of coal-tar and 



ammoniacal liquor. Lond. 1882. 



669 METALLURGY. 



66902 Austen, Sir W. C. R. Introduction to the study of 

 metallurgy. Lond. 1902. 



-66902 Hiorns, A. H. Text-book of elementary metallurgy. 



Lond. 1888. 



66902 Schnabel, C. Handbook of metallurgy. Trans, from 

 German. Lond. 1905. 



6698 Borchers, W. Electric smelting and refining. Trans, 

 from German. Lond. 1904. 



6699 ASSAYING. 



6699 Aaron, C. H. Assaying. 2 vols. San Francisco 1900. 

 6699 Hiorns, A. H. Practical metallurgy and assaying. 



Lond. 1888. 



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