IN CHEMICAL ANALYSIS. (Quantitative.) BY DR. C. REMIGIUS FRESENIUS, PROFESSOR OF CHEMISTRY AND NATURAL PHILOSOPHY, WIESBADEN, LATE EDITED BY J. LLOYD BULLOCK, MEMBER OF THE CHEMICAL SOCIETY, LATE OF THE GIESSEN AND PARIS EDITOR'S PREFACE. DR. FRESENIUS has prefaced his work in his own language with a few remarks which, however apposite, and suitable to German readers, I am unable to adopt without substituting for his description of what is, a statement of what ought to be, the state of chemical science. He observes, that the times are past when men who aspired to the title of CHEMISTS can be satisfied with a knowledge of mere results, without an acquaintance with the methods of research, and the power to pursue for themselves new discoveries. Whilst I am quite ready to acknowledge my belief that we have arrived at the dawn of the brighter period, I must confess myself unable to find in English scientific literature, any evidence of a wide-spread habit amongst those who undertake to teach, of qualifying themselves for the office by laborious applica tion in the laboratory. The folly still prevails of supposing that chemistry can be learned by attendance on lectures; and so it can, equally with the manufacture of watches and steam engines, and the guidance of ships over the ocean. A course of lectures teaches more or less about chemistry; a few pretty experiments serve to give the student certain general notions which may be useful to him before entering upon its study. When he has |