This Pocketbook is intended for the use of all persons connected with The Building Trades, and contains many features not found in similar publications. In addition to tables giving the properties of materials used in construction, practical rules for laying out work, and data valuable for reference, it presents approved methods for solving the problems involving strength and stability, which occur in building practice. The processes of calculation are clear and intelligible, and those who are acquainted with simple arithmetic will have no difficulty in following them.

Among the subjects considered are the loads on structures; the strength of materials; the bearing capacity of soils; the width and thickness of footing courses; the dimensions of piers and their foundations; the thickness of walls for different classes of buildings; and the various kinds of stone and brick masonry. Careful analyses are made of columns, beams, and arches of iron, steel, wood, and stone, and of the design and construction of roof trusses in wood and steel. The features of detail peculiar to structural v. are also fully explained and illustrated.

Constructive details pertaining to Masonry, Bricklaying, Plastering, Carpentry, Joinery, Stairbuilding, Roofing, and Painting are treated comprehensively, and much new information is given on the Computation of Quantities and the Costs of Materials.

There is no other pocketbook published which fully treats of American Plumbing, Gas-fitting, Heating, and Ventilation. The chapters on these subjects contain tables, rules, formulas, cognized maxims, hints on the best modern practice and on the most approved apparatus and materia-als, with numerous sketches and practical information never before published.

The demand for a handy, serviceable volume devoted entirely to the building interests, has induced the production of "The Building Trades Pocketbook," and it will be found to be a valuable aid to Architects, Engineers, Contractors, Builders, and Artisans.

The International Correspondence Schools,

January 2, 1899.

Scranton, Pa.