Georgetown College Observatory (Washington, D.C.)

• Observations of variable stars made in the years 1884-1890
• The photochronograph and its applications
• ... Supplementary notes to the Atlas stellarum variabilium
• Annals of the astronomical observatory of Georgetown college, D.C.
• First chart and catalogue for observing Nova Persei
• USAF - Georgetown solar eclipse project
• [Georgetown College Observatory publications]