ALT Excerpt from phaedra0419, a note book titled "Fundamental Star Observations and Reductions, Final Values" written by William Rogers. The image shows a page of graph paper with faint grid lines, exceot every 5th line is a dark blue. The name of a star "B Persei" is written at the top, with dates and numbers arranged in a table beneath the heading.

ALT A excerpt from phaedra0418, a notebook titled "General Catalog Observations and Reductions." This notebook was written in 1871 and 1872 and contains calibrated astronomical data. The page is covered in a gird with light blue lines and dark red lines after every five boxes, both horizontally and vertically. The page is densely covered in writing, including the names of stars written in blue ink appear on the left, with numbers in blue and red ink written to the right to the edge of the image.