to the history of primeval society has been considerably enriched. Anthropologists, travelers and professional historians were joined by comparative jurists who added new matter and opened up new points of view. Here and there, some special hypothesis of Morgan has been shaken or even become obsolete. But in no instance has the new material led to a weakening of his leading propositions. The order he established in primeval history still holds good in its main outlines to this day. We may even say that this order receives recognition in the exact degree, in which the authorship of this great progress is concealed.
London, June 16th, 1891.
Frederick Engels.