Modern dry plates, or, Emulsion photography / by Dr. J.M. Eder.
A technical manual by Austrian photochemist Josef Maria Eder, published in New York by E. & H.T. Anthony in 1881, aimed at photographers and chemists working with gelatin and emulsion plates. The pictures in the index are not from this book's text but are stray ornamental trade-card fragments: firm names, Detroit and Woodward Avenue address lines, and decorative borders of fans, scrolls, palms and figures. A designer could take from them the period typography of nineteenth-century American dealer advertising, with its mixed serif caps, italic lines and small engraved vignettes.
