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POPULAR SCIENCE REVIEW. 
Metallography as a Separate Science , fyc., "bv T. Allen Blyth, M.A., Ph.D. 
London : Longmans, 1871.— Dr. Blyth seems as fond of poetry as of 
metallography, and uses it largely in the hook. We do not see the force 
of his arguments in favour of making this a separate science from chemistry, 
nor do we see anything new that is valuable in his pages. The book contains 
some facts not stated in most chemical works, but they are very few. We 
do not approve of the volume tout entier. 
Atchley's Civil Engineers' and Contractors' Estimate and Pnce-book for 
Home or Foreign Service , by W. D. Haskoll, C.E. London : Lockwood, 
1871. — This book will be found useful by all who are engaged in building, 
&c. It contains, arranged in tables, the costs of every conceivable work 
connected with building, fencing, draining, road-making, &c. It seems a 
good book. 
On the Aymara Indians of Bolivia and Peru, by David Forbes, F.R.S., 
F.G.S., &c. Londons Taylor & Francis. — Mr. Forbes has here reprinted for 
private circulation his admirable essay, read before the Ethnological Society 
in June last. It contains 100 pages, six page-plates, most admirably 
executed, and a long list — a sort of dictionary — of the words in the language 
of the people. The book is most interesting, but it is especially valuable 
because of the measurements of bones of this peculiar people which it contains, 
and which we believe have been considered very valuable by Mr. Darwin. 
The Elements of Algebra and Trigonometry , by W. M. Griffin, B.D. 
London : Longmans, 1871. — This is the latest of Messrs. Longmans’ ad- 
mirable series of scientific works. It seems to be a well-arranged manual, 
containing abundant examples, and leading the student on fairly. It is, of 
course, intended for artisans and others, but we fear for few of the former. 
Aunt Pacliel's letters about Water and Air. London: Longmans, 1871. — 
Is a simple plain account of the leading phenomena in the branches of 
natural philosophy taken up. We can recommend it for young boys and 
girls. 
The Aboriginal Tribes of the Nilgiri Hills, by Lieut.-Col. W. Boss King, 
F.R.G.S. London: Longmans, 1871. — These singular people are very well 
described in a paper read by Col. King before the Anthropological Society, 
and reprinted here. The paper is a most interesting one, and will repay 
perusal. 
The Modes of Eying and the means of obviating the tendency to Death, by 
W. F. Cleveland, M.D. London : Churchill, 1871. — This is Dr. Cleveland’s 
annual address to the Harweian Society. Without containing anything 
absolutely new, it is a forcible address and contains some very curious 
cases. We think the author is to be thanked for pointing out methods not 
new, but too unknown, for prolonging and saving life. 
Manual of the Science of Colour, by William Benson, Architect. London : 
Chapman and Hall, 1871. — This is really a book which should be in the 
hands of every artist, and of all who have to do with colour. It is to our 
minds the only accurate view which has been put forward. We have passed 
this opinion before, and we hope that the book will be appreciated. 
