A rough copy of quadrant observations, 1 January 1786 - 19 August 1811. The observations from 9 February 1811 were made by John Pond. The book also contains a rule to find how many seconds it takes a celestial object to pass through the wires in the mural quadrant; observed distances of the fixed stars from the zenith with the zenith sector, 1810; a chronology of repairs and adjustments to the quadrant, 1786-1808; and errors in observations of the Moon, 1804-1808.