Hebrew books, which were then almost exclusively of a religious nature, such as prayer-books, Bible and Talmud editions, rabbinic, cabalistic, and hasidic writings, were then issuing from the printing presses of Vilna, Slavuta, [1] and other places, and were subject to a rigorous censorship exercised by Christians or by Jewish converts.

Practically every Jewish home-library consisted of religious works of this type.

The suspicions of the Government were aroused by certain Jewish converts who had insinuated that the foreign editions of these works and those that had appeared in Russia itself prior to the establishment of a censorship were of an "injurious" character.

As a result, all Jewish home-libraries were subjected to a search.

Orders were given to deliver into the hands of the local police, in the course of that year, all foreign Hebrew prints as well as the uncensored editions, published at any previous time in Russia, and to entrust their revision to "dependable" rabbis.
These rabbis were instructed to put their stamp on the books approved by them and return the books not approved by them to the police for transmission to the Ministry of the Interior.