LUMBER ENd TtS USES

By R. S. KELLOGG Rerrised by Franklin H. Smith

385 Pages, 6x9 ins., 98 Figures, llI Stctistical Tables.

I UMBER and lts LJses, by R. S. Kellogg, has t-t had perhaps the widest sale of any booh of the kind ever published.

The third edition, revised to date by Franhlin H. Smith, printed from new type and attractively bound, is even more valuable than heretofore to every manufacturer and distributor of lumber, and all concerned with specifications for lumber, timber and other uses.

This book tells you in simple, non-technical language the following:

Facts You Want to Know

About the structure of wood and what is meant by such terms as springwood and summerwood, heartwood and sapwood. About the weight, strength, toughness, hardness, and other physical properties of all the important American woods, with detailed tables of the results of many laboratory tests.

EIow lumber is graded into classes best adapted to varied uses and enumerates the principal grading systems in vogue today. What are the standard sizes of the difierent kinds of lumber when worked into flooring, ceiling, partition, drop siding, boards, dimensions, etc.

The commercial shipping weights of lumber and logs with tables of lunrber measurements and log rules.

The latest proposed grading rules for structural timbers. The why and how of timber seasoning both by natural and artificial means.

\&'hat causes wood to decay and how it may be prevented. The functions of paints and wood finishes with specifications for their application.

How hardwood floors of different kinds should be laid, finished and cared for.

How the fire resistance of wood may be increased, and what building codes should specify.

How lumber prices compare with those of other materials and their relation to total building costs.

The annual volume of wood consumption in the United States in'fifty difterent industries.

The principal uses of all species of commercial importance. The general features of the lumber industry from the acquisition of iimber to the marketing of the finished product.

AFFERED throwh special arrangement with - ,h" publishers, at a low price.

An intensified merchandising campaign of the combined building merchants of the average townor city of this land, will at least double the consumption of lumber that develops automatically. This is the time of all times for the builders of every town to cooperate in conducting such a campaign.