gement and
treatment of the subject-matter relating to them is believed to be a
feature of special merit.

4. The most important experiments and those best illustrating the
subjects to which they relate, have been selected; but the modes of
experimentation are so simple that most of them can be performed by
the average pupil without assistance from the teacher.

5. The necessary apparatus and chemicals are less expensive than those
required for any other text-book equally comprehensive.

6. The special inductive feature of the work consists in calling
attention, by query and suggestion, to the most important phenomena
and inferences. This plan is consistently adhered to.

7. Though the method is an advanced one, it has been so simplified
that pupils experience no difficulty, but rather an added interest, in
following it; the author himself has successfully employed it in
classes so large that the simplest and most practical plan has been a
necessity.

8. The book is thought to be comprehensive enough for high schools and
academies, and for a preparatory course in colleges and professional
schools.

9. Those teachers in particular who have little time to prepare
experiments for pupils, or whose experience in the laboratory has been
limited, will find the simplicity of treatment and of experimentation
well worth their careful consideration.

Those who try the book find its merits have not been overstated.

A. B. AUBERT, _Prof. of Chemistry, Maine State College, Orono, Me._:
All the salient points are well explained, the theories are treated of
with great simplicity; it seems as if every student might thoroughly
understand the science of chemistry when taught from such a work.

H. T. FULLER, _Pres. of Polytechnic Institute, Worcester, Mass._: It
is clear, concise, and suggests the most important and most
significant experiments for illustration of general principles.

ALFRED S. ROE, _Prin. of High School, Worcester, Mass._: I am very
much pleased with it. I think it the most practical book for actual
work that I have seen.

FRANK M. GILLEY, _Science Teacher, High School, Chelsea, Mass._: I
have examined the proof-sheets in connection with my class work, and
after comparison with a large number of text-books, feel convinced
that it is superior to any yet published.

G. S. FELLOWS, _Teacher of Chemistry, High School, Washington, D.C._:
The author's method seems to us the ideal one. Not only are the
theoretica