26 JANUARY 1889, Page 44

Two volumes of a .practical kind may be mentioned together.

These are, Practical Surveying, by George W. Usill (Crosby Lock- wood and Son), described as " a text-book for students preparing for examination, or for survey-work in the Colonies ;" and Practical Elements in Construction, a "reference-book for engineers and builders," by Percy L. Addison (Elliot Stock). This is fur- nished with plates, and has a full table of contents, but an index

• would be a convenience.