Written: Written November 12 or 13, 1913
Published: First published in 1929 in the journal Proletarskaya Revolyutsiya No. 11. Sent from Krakow. Printed from the original.
Source: Lenin Collected Works, Progress Publishers, 1977, Moscow, Volume 37, pages 504-505.
Translated: The Late George H. Hanna
Transcription\Markup: D. Moros
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Maria Ilyinichna Ulyanova,
Samarin’s House, Apt. 3,
I received your letter a few days after I had posted you a letter from Nadya and me.
You make me ashamed of myself for my silence. I really am at fault—there has been a lot of bother over our moving and because of the influenza. Now Y.V. here is ill—she has had a very bad attack of influenza but is now recovering.
You ask about new German literature. I have just finished reading the four volumes of the Marx-Engels correspondence. I want to write about it in Prosveshcheniye. There is much of interest. It is a pity the publishers— those Bosches!—charge such a price for it—40 marks! I have not yet read Beer’s new History of Socialism in England, but I soon shall.
Cunow’s book on the origin of religion appeared recently. I would send it to you (I can buy it) but I am afraid it would not reach you. If you receive or can obtain Neue Zeit, there is a list in it of all the interesting things. I do not see any new bourgeois literature. If you like I can send you a list of all new books in German (a small publication I get every month, it is put out by Hinrichs, a bookseller in Leipzig).
All the best. Give Mother many kisses for me and for Nadya.
It is a long time since I had word from Anyuta.
I am reading Octave Mirbeau’s Dingo. In my opinion it is no good.
 In September 1913, four volumes of the Marx-Engels correspondence were published in German. Lenin planned a big work about this correspondence, the beginning of which was his article “The Marx-Engels Correspondence” (see Collected Works, Vol. 19, pp. 552–58).
In a thick notebook containing 76 pages, now in the Central Archives of the Institute of Marxism-Leninism, Central Committee of the C.P.S.U., Lenin made notes on about 300 letters and made extracts from 15 that are of theoretical importance; he also compiled a short thematic index to his notes. The four volumes on which Lenin worked have been preserved; they have passages underlined or encircled and also marked N.B. in the margins; the remarks are made in pencil in four different colours. This material was published in Moscow as a separate edition in 1959 under the title of Konspekt “Perepiski K. Marksa i F. Engelsa” (Conspectus of the Marx-Engels Correspondence).
It had been intended to publish Lenin’s essay in the journal Prosveshcheniye in 1914 (as reported in Proletarskaya Pravda on December 14, 1913) but it remained unfinished and was first published in Pravda on November 28, 1920 on the Occasion of the centenary of Engels’s birth.