UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 1036 



Contribution from the Forest Service 

 WILLIAM B. GREELEY. Forester 



Washington, D. C. 



PROFESSIONAL PAPER 



October 20, 1922 



COAL-TAR AND WATER-GAS TAR 



CREOSOTES: THEIR PROPERTIES 



AND METHODS OF TESTING 



By 



ERNEST BATEMAN 

 Chemist in Forest Products 



CONTENTS 



Page 



Part I. Tars and the Production of Creosotes from Tar .... 3 



Part II. Experimental Comparison of Authentic Specimens of Creosote . 23 



Part III. Properties of Creosotes 47 



Part IV. Methods of Testing Creosotes and Official Specifications for 



Creosote 87 



Appendix 106 



Bibliography 112 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1922 



