In recent times Emanuel Swedenborg has, on many sides, been the object of a continually increasing interest, and year after year has attention been called to the manysided works of his life. In former times he was known almost exclusively through his religious writings. But it has gradually come to light that he was also an investigating genius of the first rank, who opened new paths in several branches of the natural sciences and made wonderful discoveries. Thus, by way of illustration, Professor ANDERS RETZIUS has drawn forth from oblivion his _anatomical_ and _physiological_ works and shown that there is to be found in them (especially in ›Regnum Animale›) ›ideas belonging to the most recent times, and a scope, induction and tendency which can only be compared to that of Aristotle.›[1] And since then several authors have expressed themselves in a similar manner, as Professor CHRISTIAN LOVÉN,[2] Professor MAX NEUBURGER (Vienna),[3] Professor C. G. SANTESSON,[4] and above all Professor GUSTAF RETZIUS[5] on repeated occasions. The case is also similar with respect to SWEDENBORG’s _geological_ researches. Here J. J. BERZELIUS[6] has sought to direct the attention of the learned to his penetrating observations and ingenious conclusions; and the opinions of such men as Professor A. E. NORDENSKIÖLD,[7] Professor A. G. NATHORST,[8] and others, have also tended in the same direction in regard to SWEDENBORG. Within the realms of _astronomy_ and _cosmology_ Professor M. NYRÉN[9] and later Professor S. ARRHENIUS[10] have pointed out the grand hypotheses of the creation of the worlds, etc. etc., which SWEDENBORG had erected in advance of all other authors in cosmology. A number of societies and associations have also been formed whose purpose it is to spread a knowledge of SWEDENBORG’s works concerning natural science. The oldest of these is the Swedenborg Society of London, which absorbed the purely scientific Swedenborg Association half a century ago, and which this year celebrated the centenary of its foundation. In 1898 there was founded in the United States of America the Swedenborg Scientific Association. In Sweden the Royal Academy of Sciences appointed in 1902 a committee to investigate the contents of SWEDENBORG’s manuscripts and to publish selected works. A number of individuals besides those already mentioned have devoted much labour and care to the translating and editing of SWEDENBORG’s scientific works, among whom we may mention the Englishmen J. J. GARTH WILKINSON, M. D., and the Rev. A. CLISSOLD, the German Prof. Dr. IMMANUEL TAFEL, the German-American Dr. RUDOLF TAFEL, and the American Mr. ALFRED H. STROH, M. A.[11]