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POPULAR SCIENCE REVIEW. 
representation of tlie theoretical and manufacturing aspects of the question 
in their mutual relations. Dr. Reimann not only gives an admirably lucid 
expose of the various manufacturing processes, but has traced down the 
history of his subject from its first beginning to its latest development. The 
German edition of the work succeeded well, and the English edition is in 
advance of the German one, through the care taken by Mr. Crookes to in- 
corporate with it descriptions of all the recent improvements which have 
been made, both in this country and abroad, since the publication of the 
original work. The work is further valuable from containing an appendix 
from the able report of Dr. Hofmann and MM. de Laire and Girard on 
the colouring matters derived from coal-tar, shown at the French Exhi- 
bition, 1867.” The book is well printed, contains illustrations of the apparatus 
employed in manufacture, and may be profitably read even by those who 
possess but an elementary knowledge of organic chemistry. 
EDUCATION AND TRAINING.* 
A lthough the question of general education may be considered to be 
excluded from the pages of a journal like ours, yet so many of our 
readers are interested in the point that we cannot refrain from bringing 
under their notice the very clever and suggestive essay which lies on our 
table. We are ignorant of the author, but whoever he may be, he is evi- 
dently one who has given careful thought to the very important question 
he deals with, and who therefore deserves to be listened to whatever 
may be his views. These views, so far as we have gathered them, are 
distinctly favourable to a compulsory school education, and to a further 
development of the means of education provided for the poor by the State. 
The author is an erudite and vigorous writer, who drives home his cleverly 
pointed conclusions, with skilfully applied force. 
VIS INERTIHil.t 
H ere is a -book nicely bound, well-printed on good paper, and abounding 
in maps, diagrams, and charts, and yet we can only deduce from it that 
it is what Sterne would term Hobby-horsical. The author has a certain 
knowledge of meteorological laws, and he writes with tolerable clearness, and 
yet we can only put him down as an over-zealous enthusiast — one who 
twists and turns and clips a foregone conclusion, till he fancies he has got it 
into such a shape that it shall pass as readily into other men’s minds as it 
* Education and Training Considered as a Subject for State Legislation, 
&c.” By a Physician. London : Churchill. 1868. 
t ^‘A Treatise on the Action of Vis Inertise in the Ocean, &c.” By Wm. 
Leighton Jordan, F.R.G.S. London: Longmans, 1868. 
