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executed engravings, has pleaded his case so well that we fancy there are few 
engineers who will not bring in a verdict in his favour. Not the least in- 
teresting portion of Mr. Fairbairn’s important work is the description of the 
magnificent establishment at Saltaire, which, as the writer well observes, does 
honour to its owner, and has been a source of pride to himself, as being the 
important undertaking with which he terminated the active services of his 
professional life. This work will be found most useful to all engaged in 
building, and should be in the hands of every architect and engineer. 
OUR COMMON INSECTS.* 
W HEN first we glanced at Mrs. Cox’s little brochure, we anticipated 
having to be rather severe on the authoress, for we observed that 
under the title of a work on insects there were included descriptions of 
several of the Arachnida. On giving the book, however, a careful perusal, 
we found that the writer has disclaimed any such association of the two 
classes as scientifically accurate. In the definition which she has given of an 
insect, her ideas of the group are shown to be strictly correct ; she merely 
alludes to the spider tribe to show that they are devoid of wings and pro- 
vided with a cephalo-thorax and eight bags, and hence cannot be referred to 
the division Insecta. Mrs. Cox’s style is clear, and withal simple, and, as a very 
elementary work on entomology, we can conscientiously recommend it. 
* “ Our Common Insects. First Steps to Entomology.” By Mrs. E. W. 
Cox. Fcap. 8vo. pp. 120. London ; Hardwicke. 1864. 
