and in the routine work of the professional Metallurgical Chemist. Whatever
merit the work may possess the Authors consider rests on this claim, and it is
their hope that the arrangement herein laid down may be of service both to the
Teacher and Student.
Much of the subject-matter is generally regarded as the common property of
all chemists, but, where special authorities have been referred to, due acknowledg-
ment, as far as was in the Authors' power, has been made; and if in any case
this has been omitted, it has been on account of the difficulty in a far-away State
of referring to original sources of information. Any omissions of this nature will
be gladly corrected in a future edition.
Though the work herein detailed covers a course of three years' laboratory
practice, it is highly advisable that the student extend the course to a fourth
year, the details of which may be left to the instructor, or may be selected by the
student from the works of Beringer, Furman, and the current literature.
As the time for combined revision of manuscript and proofs has been rather
limited, the Authors, in justice to each other, desire to explain that Mr C. Walker
is responsible for the sections dealing with Qualitative Analysis and the Prepara-
tion and Properties of Gases (pages 1 to 65), and Mr W. A. Macleod for the
sections dealing with Quantitative Analysis (pages 65 to 315), Assaying,
Technical Analysis, and the illustrations.