Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

A guide to the vascular plants of the Yellowstone and Grand Teton National Parks that covers plants best known to park visitors, including ferns, pines, and flowering plants such as lilies, grasses, and roses.