Browse Items (1901 total)

Elizabeth Langdon Williams

Unknown 1920 ca.

Letter from Elizabeth Williams to Percival Lowell discussing Planet X calculations

Williams, Elizabeth Langdon 1910-08-15

Trans-Neptunian planet (Planet X) computations by Elizabeth Williams

Williams, Elizabeth Langdon 1910 ca.

Wrexie Leonard's Scrapbook Number 1

Leonard, Wrexie Louise 1877

Wrexie Leonard's Scrapbook Number 2

Leonard, Wrexie Louise 1875 ca.

Wrexie Leonard's Scrapbook Number 3

Leonard, Wrexie Louise 1889 - 1907

Lowell Observatory Logbook Page, January 3-9, 1900

Leonard, Wrexie Louise 1900-01

Lowell Observatory Logbook Page, Feb. 22, 1897

Leonard, Wrexie Louise 1897-02-22

Lowell Observatory Logbook Page, March 4, 1897

Leonard, Wrexie Louise 1897-03-04

Lowell Observatory Logbook Page, March 19, 1897

Leonard, Wrexie Louise 1897-03-19