MARX TO LUDWIG KUGELMANN” 

London, 28 March 1870 

Dear Kugelmann, 

Since an abscess on my right thigh makes sitting for any time 
impossible, I send you, enclosed, a_ letter for the Brunswick 
Comité, Bracke and Co., instead of writing twice. It would be best if 
you delivered it personally, after reading it through, and 
reminded them again that this information is confidential, not 
intended for the public.”