Read on Mobile Enter Reading Mode The Sumnner line; Posted on 4月 18th, 2015 by root V Naval science publisher: New York, John Wiley & sons, inc.; [etc., etc.]creator: Comstock, George Cary, 1855- [from old catalog]Keyword: Navigation.years: 1919.pages: vi, 70 p.class: VK569download: pdf file SCAN THIS QR CODE WITH YOUR PHONE