Vols. 19 (1894) and 20 (1895): 20.9 x 16 cm. The printer's imprint is absent. The two volumes together are half-bound in maroon levant over boards marbled in gray, white, black, and red. The spine has the title, dates, and seven pairs of horizontal rules stamped in gilt; the covers are blank. The endpapers are in a pattern of gray on tan. Each volume has its own overall title page and separate pagination, with full title and publisher, followed by a two-page index. The texts include both engraved illustrations and photographs.