See this legally free ebook:

  • Russia and the Universal Church, by Vladimir Solovyev [or Soloviev or Solovyov], translated by Herbert Rees (London: The Centenary Press, 1948). 204 pages. Available in PDF format at The Aquinas Catholic Site. [N.B., This ebook appears to be hosted on the website of a group that is Sedevacantist (rejecting the magisterium of the one true Church from the 2nd Vatican Council onwards). While the website contains some useful materials, please sift them with prayerful caution.]

On the Feast of Saint Sergius of Radonezh, Patron of the Russian State, in the Eastern Catholic churches of the Byzantine Rite For other legally free ebooks, you may access the List of Free eBooks (Arranged by Title) and the List of Free eBooks (Grouped by Subject).