508 Notices of Books. [October, 
nent, and of the United States; but while the chief subjects for 
illustration and description consist of the principal bridges 
erected during the last ten years, the work includes also 
accounts of special structures not generally classed under the 
generic term ‘“ Bridge,” but which, strictly speaking, belong to 
it; such as the sewer-crossings and other special structures on 
the Metropolitan Railway, the arrangements for carrying gas 
mains in connection with the Beckton Gas Works, railway station 
roofs, &c. 
This book is well got up, and printed upon a rich thick paper, 
and the subject matter is illustrated with numerous well- 
executed woodcuts, whilst there is, also, that great desideratum 
for alt works of reference, a good index. The description of 
each bridge is given in a clear and concise manner, accom- 
panied by such statistics of weights, strains, &c., as are neces- 
sary for a complete comprehension of the particulars in each 
case. 
Of course iron bridges and works occupy the greater portion 
of the book; but there are also given specimens of bridges of 
timber, masonry, and artificial stone, or the béton aggloméré 
of M. Coignet. Bridges on the truss, girder, cast-iron, and 
suspension principles are fairly represented, whilst swing- 
bridges, piers, and methods adopted in the reconstruction of 
bridges in France, are not omitted. 
Whilst this work must be invaluable to professional men, it 
will prove, we think, by no means uninteresting to the intelligent 
general reader. 
