Series IV consists of Harold Jacoby's manuscript and typewritten lectures as well as articles for publication. Jacoby's writings cover a wide range of astronomical topics and contemporary events.
Approximately, 1908
Box 4 Folder 10
"American Astronomers to the Fore"
Box 4 Folder 10
"A Catechetical Grotesque"
Box 4 Folder 10
"Astronomical Research"
Box 4 Folder 10
"Attainder"
Box 4 Folder 10
"Gravity"
Box 4 Folder 10
"How far North is 'Farthest North'"
Box 4 Folder 10
"Long Range Weather Prediction"
Box 4 Folder 10
"Measuring the Earth by Wireless"
Approximately, 1908
Box 4 Folder 11
"Poesy and Paleo-Zoology"
Box 4 Folder 11
"Professor Migrans"
Box 4 Folder 11
"The Fourth Dimension"
Box 4 Folder 11
"Faith and the Fourth Dimension"
Box 4 Folder 11
"The Case Against Mars"
Box 4 Folder 11
"History of Astronomy"
Box 4 Folder 12
"Formulas for the Comparison of Astronomical Photographs,", undated
Box 4 Folder 12
"Opening Address to the Summer School of Geodesy, Camp Columbia,", 1908
Box 4 Folder 12
"Announcement to Precede Calendar Lecture,", November 24, 1908
Approximately, 1909
Box 4 Folder 13
"The Distance of the Sun"
Box 4 Folder 13
"Foucault's Pendulum"
Box 4 Folder 13
"Planets, the Wandering Stars"
Box 4 Folder 13
"The Planets Magnitudes, Masses, etc."
Box 4 Folder 14
"The Planets Again"
Box 4 Folder 14
"Moonshine"
Box 4 Folder 14
"More Moonshine"
Box 4 Folder 14
"The Seasons"
Box 4 Folder 14
"Weighing the Earth"
Box 4 Folder 14
"Sun-Dials"
Approximately, 1909-1910
Box 4 Folder 15
"North Polar Astronomy"
Box 4 Folder 15
"Halley's Comet"
Box 4 Folder 15
"The Great Comet of Halley"
Box 4 Folder 15
"Is Mars Inhabited"
Box 4 Folder 15
"The Planet Mars and Saturn in Conjunction"
Box 4 Folder 15
"The Planets One by One"
Box 4 Folder 15
"Eclipses"
Box 4 Folder 16
"Long Haired Stars"
Box 4 Folder 16
"Meteors and Shooting Stars"
Box 4 Folder 16
"Sunshine"
Box 4 Folder 16
"Star-Shine"
Box 4 Folder 16
"Making Plans"
Box 4 Folder 16
"The Runge Dinner"
Box 4 Folder 16
"The Universe Once More"
Box 4 Folder 17
"The Universe,", undated
Box 4 Folder 17
"Star Catalogues,", undated
Box 4 Folder 17
"Astronomy,", undated
Box 4 Folder 17
"Astronomical Research,", undated
Box 4 Folder 17
"The Coming Re-appearance of Halley's Great Comet,", undated
Box 4 Folder 18
"How the Worlds Were Made,", undated
Box 4 Folder 18
"Mother Earth,", undated
Box 4 Folder 18
"George William Hill,", undated
Box 4 Folder 18
"Time,", undated
Box 4 Folder 18
"Precision,", undated
Box 4 Folder 18
"The Case Against Halley's Comet,", undated
Box 4 Folder 19
"The Heavens,", undated
Box 4 Folder 19
"A Short Course in Astronomy,", undated
Box 4 Folder 19
"Equations Occurring in Lectures on Geodesy,", undated
Box 4 Folder 19
"A Lecture on the Method of Least Squares Applied to Conditioned Observations,", undated
Box 4 Folder 19
"The Tides,", undated
Box 4 Folder 20
"Abraham Lincoln,", undated
Box 4 Folder 20
Scattered manuscript pages