Minutes of proceedings of the Royal Artillery Institution (1858)
Great Britain. Army. Royal Artillery Institution · Woolwich, Eng., : The Institution · leaf 581
tted at regular intervals by successive perforations of the register, without removal of the eye of the observer, or disturbance of the line of collimation of the instrument with the target. 4. That the scale of the alidade, laid down in minute subdivisions, shall be capable of affording the most…
Artillery -- Periodicals · Artillery -- Great Britain -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
