96 
POPULAR SCIENCE REVIEW. 
trations representing’ the commoner plants met with in an ordinary ramble 
are correctly executed, and the selection is judicious. If parents be 
desirous of imparting to even young children a little of the science of 
plants, this is decidedly the hook to invest in. 
THE MANAGEMENT OF STEEL* 
I F practical experience, conveyed in plain language, he a recommenda- 
tion, then will Mr. Ede’s little hook be read by all whom mechanical 
and metallurgical information may concern. His remarks on the methods 
of hardening steel are exceedingly reasonable, and are likely to work a 
reform in the ordinarily-adopted processes. While on the subject of 
“ tempering,” he throws out some important hints relative to the boiling 
of oil employed in the operation. The directions given in regard to the 
expansion, case-hardening, shrinking, and annealing of steel are sug- 
gestive, and are worthy the attention of the mechanical engineer. 
HOME WALKS AND HOLIDAY RAMBLES.f 
T HE little book which bears this title bids fair to become a popular 
favourite, not only with that class of the community which scours 
the country in search of bird and moth, but also with those who are to be 
found upon the sea-coasts, engaged in the collection of “ common objects.” 
It is written in a very attractive manner, and illustrated by several 
original sketches, which, as they delineate scenes that have occurred in 
the author’s excursions, lend another interest to the volume. All our 
familiar animals and some of our native plants are commented on, the 
allusions proving that Mr. Johns is an experienced observer of nature, 
and one capable of imparting information successfully. His hook is just 
the one likely to cultivate a taste for natural science, and we hope it may 
have an extensive sale. 
* “The Management of Steel.” By George Ede. Second edition. 
London : Tweedie. 1863. 
f “ Home Walks and Holiday Rambles.” By the Rev. C. A. Johns, 
B.A., F.L.S. London : Longman. 1863. 
