174 DAY — AX ASPHALT KESEMBLIXG GILSONITE. [May 20, 189S. 



It should be stated, in addition, that for tlie sake of comparison, 

 fish alone, i. e., without wood, were subjected to distillation and 

 without passing the vapors through the red-hot tube. The products 

 obtained included nothing that bore any resemblance to gilsonite 

 and they were radically different from the products which accom- 

 panied the distillation of fish and wood together. 



This brief paper is of course only preliminary to one which should 

 consider the literature of the subject more in detail, and which may, 

 I trust, throw some light on a few of the many problems which nat- 

 urally suggest themselves. 



I shall continue the work as rapidly as my limited time and facil- 

 ities for such study will permit. In conclusion I take pleasure in 

 expressing my obligations to my assistant, Mr. Eugene Leamy, for 

 his very intelligent and effective aid in carrying on the experimen- 

 tal work. 



SWARTHMORE COLLEGE, May 1 9, 1 898. 



