Philadelphia, Press of Alfred J. Ferris 1894 vi + 151pp., 21cm., Introduction in English and Text edition in French, bound in hardcover (original cover preserved and bound in), Doctoral Dissertation (Dissertation presented to the board of University studies of the Johns Hopkins University Baltimore for the degree of Doctor of Philosophy), stamp at verso of title page, text is clean and bright, with illustrated ex-libris of Karl Vollmöller, Y110123