Archived papers: volume 50, scientific papers submitted the Royal Society unpublished or abstracted, 1868 Contains 15 papers and assorted documents submitted to the Royal Society, which were either not published at the time of receipt, or published in the Proceedings of the Royal Society. The papers are arranged alphabetically by author and cover the period of 1867-1868 [spine reads 1868]. Includes an index at the beginning of the volume. 1868