CONTENTS. 
Page. 
Introductory 7 
Eelation of Railroads to Forest Supplies and Forestry, by M. G. Kern 11 
Summary of Correspondence -with Eailroad officers 26 
APPENDICES. 
I. — Structure of Certain Timber-Ties, Behavior, and Causes of their Decay 
in the Road-bed ; together with Experiments on the Adhesion of Spikes, 
by P. H. Dudley, C. E 31 
II. — "Wood Preservation, by Col. Henry Flad, C. E 66 
"With notes and conclusions by Howard Constable, C. E 92 
III. — Wood-creosote Oil, by Capt. W. H. Bixby, U. S. A 99 
IV. — Addenda and tables of annual charges, by B. E. Fernow 104. 
V. — Metal Ties, notes, and statistics, by B. E. Fernow.- 108 
VI. — Connection of Railroads with Forest Fires, by N. H. Egleston, and papers 
on Spark Arresters, by J. N. Lauder and G. W. Tilton 128 
5 
