A certain amount of repetition has been unavoidable, as many of the subject’s over-
laps one another.
Some of the instructions and cautions given may possibly appear trivial and unnecessary, but experience proves that many of them are frequently neglected.
In order to save needless repetition, the nature and strength of the materials and solutions
recommended for use ate described all together at the end of the book.
The common chemical names in ordinary use, whenever they are not wrong, have
been employed in preference to others that, although more technically correct, are less
The author-wishes to express his thanks and indebtedness to many friends who
have generously helped him out of the abundance of their knowledge and experience.
usual references are given in those instances in which methods previously described are
Book's Contents and Sample Pages
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