London, 24 April 1860 
9 Grafton Terrace, Maitland Park, 
Haverstock Hill 

Sir, 

I have the honour to enclose a retaining fee of 15 talers, at the 
same time advising you that I fully agree to all the measures 
adopted by you. 

I remain, Sir, 

Your Obedient Servant, 

Dr Karl Marx 

P.S. As a result of investigations that I have started in Paris 
and Switzerland, notably in Geneva,'” I now have proof (after the 
proceedings I intend to publish it in pamphlet form) that 
Professor Karl Vogt is no more than a common French agent. I 
believe, by the by, that the annexation of Nice and Savoy will have 
opened the eyes of even the blindest of men to the ‘Italian work of 
liberation’,'*’ the danger that is threatening Germany and the 

rightness of those who uttered timely warnings.