DENTON, Sherman F. As Nature Shows Them. Moths and Butterflies of the United States, East of the Rocky Mountains, Boston: J. B. Millet, [1900], 2 volumes, 8° (245 x 170mm.), LIMITED TO 500 COPIES, 56 mounted colour plates, numerous illustrations, some half-tone, contemporary olive green morocco, the covers with gilt butterfly motif cornerpieces, spines gilt in six compartments with raised bands and gilt butterfly centrepieces, gilt turn-ins (spines faded), g.e. (2)