Come-and-hear (an anti-Semitic drivel website) has the full text of the 1961 Soncino translation of the Babylonian Talmud. They claim it is in the Public Domain since
The Babylonian Talmud: When Elizabeth Dilling published her book, The Plot Against Christianity, it contained hundreds of pages copied from the Soncino Talmud. In the 40 years since her book was published, Soncino Press has not ever pursued a copyright claim against her. Doubtlessly, Soncino understood that no serious religion would attempt to suppress discussion of their holy books in such a manner.
There is a principle in common law that, when private property is permitted for public use over an extended period of time, it cannot be thereafter be denied to the public. This principle is called public easement. In such manner have many trademarks passed into the public domain.
In our case, however, the situation is even clearer. This Come and Hear™ presentation was created from the 1961 printing of the Soncino Talmud, which was published without copyright reservation.
Making portions of this work available on the World Wide Web is equivalent to displaying it on the shelves of a library open to the public. Our purpose is educational: we do not seek financial gain from the ingenuity of others. Moreover, our hypertext presentation cannot not be considered a replacement for the printed volumes. We recommend purchasing the original work — in the 1961 edition, if possible.
Can works enter the Public Domain through repeated copyright violations?