I send you herewith a dissertation for a doctor’s degree on the 
difference between the natural philosophy of Democritus and the 
natural philosophy of Epicurus,* and enclose the litterae petitoriae,° 
curriculum vitae, my leaving certificates from the universities of 
Bonn and Berlin, and, finally, the legal fees of twelve fried- 
richsdors. At the same time, in the event of my work being found 
satisfactory by the faculty, I humbly beg you to hasten as much as 
possible the conferring of the doctor’s degree '** since, on the one 
hand, I can only remain a few weeks longer in Berlin and, on the 
other hand, external circumstances make it highly desirable for me 
to obtain the doctor’s degree before my departure. 

I should like the leaving certificates to be returned, as they are 
originals. 

I remain, Sir, with great respect, 


Your most devoted servant, 
Karl Heinrich Marx