[Copy] 
London, 27 February 1891 

... Unfortunatély I cannot place the old ms. on Stirner at Mr Mac- 
kay’s disposal. If it is published it will be by me or my assigns. But to 
hand over to a third party for such use as he may think fit an unpub- 
lished ms. in which Marx had a hand is something J have no right to 
do, nor would I do so if I had. I have had some highly peculiar expe- 
riences in this respect. Never again shall I part with unica,” whatever 
the circumstances. And besides, the ms. is a tome which in print 
would be as thick as Stirner’s Einziger“ itself— it’s very tattered and 
fragmentary — and is still in need of rearrangement... 

(Frederick Engels)