1872.! Notices of Books. 83 
throughout the work would have greatly increased the cost, 
the figures are but slightly shaded, and in many cases only 
outlined. This admits of the reader colouring the woodcuts 
according to the description given in the text, affording him by 
these means an illustrated entomological encyclopedia of great 
fulness at a low price. The filling-in of the colours by the 
reader has a further effect—it impresses upon his mind the dis- 
tinctive features of representative class insects. The mounting, 
modes of preparation and preservation, and all matters relating 
to the cabinet, are likely to prove extremely useful to the student 
and to the curator. 
Elementary Treatise on Physics, Experimental and Applied. 
Translated and Edited from Ganot’s ‘‘ Elements de Physique.” 
By E. Arxinson, Ph.D., F.C.S., Professor of Experimental 
Science, Staff College, Sandhurst. Fifth Edition. London: 
Longmans and Co. 1872. 
ANOTHER edition of Dr. Atkinson’s work has been called for, and 
he has availed himself of the opportunity by adding many new 
illustrations, and much new matter selected from those subjects 
calculated to take a permanent place in elementary instruction. 
A larger type has been adopted in this edition, rendering the 
work still more easy of reference. All that need be said is, that 
this has been long the standard text-book of physical science. 
A Manual of Anthropology or Science of Man, based on Modern 
Research. By Cuarves Bray, Author of ‘The Philosophy 
of Necessity,” ‘‘ Force and its Mental Correlates,” &c. 
London: Longmans and Co. 1871. 
Mr. Bray is sufficiently known as the author of some very per- 
tinent works on psychology to render unnecessary any reference to 
his peculiarly pointed style—he may, indeed, be termed a common- 
sense writer. This, when the apparent difficulty of taking a 
common-sense view of the subject is considered, is certainly more 
than amerecompliment. The book endeavours to show the Unity 
of Force, and that all Power is Will Power, conscious or automatic, 
or, as Mr. W. R. Grove has put it, ‘Causation is the Will, 
Creation the act of God.” 
‘‘Physics and Metaphysics, Physiology and Psychology,” says 
Mr. Bray, “‘ thus become united, and the study of man passes 
from the uncertain light of mere opinion to the region of Science.” 
The habit of quotation, for which perhaps this author is remarkable, 
here stands him in good stead, and while it gives weight to his 
reasoning, prevents that straining after the unknowable, so common 
