A Plot of Cambridge Common with a view of the Roads & a principal part of the Buildings thereon, ca. 1781 Digital

This large drawing is believed by some scholars to be a mathematical thesis, submitted by Green in 1783 when he was a junior at Harvard College. He is known to have been assigned a mathematical part in an Exhibition held in April 1783, but it is not known if this drawing was the work he then presented. One of the buildings depicted in the drawing, Stoughton Hall, was demolished soon after a November 1781 vote authorized its destruction. The presence of Stoughton Hall in the drawing seems to indicate that Green either made the drawing as a freshman or sophomore in 1780 or 1781, or that he created the drawing after the destruction of Stoughton Hall but based it on an earlier drawing or drawings.

The drawing depicts the following buildings, listed in order of appearance, beginning with the Harvard College buildings in the bottom-left corner and moving clockwise: Holden Chapel, Hollis Hall, Harvard Hall, Stoughton Hall, Massachusetts Hall, Christ Church, the schoolhouse, a barn on the Prentice Estate, the "Laboratory" or magazine remaining from the barracks built in 1775, the Waterhouse house, the blacksmith's shop, the house of John Nutting, a barn on the John Hastings estate, the John Hastings house, and the Jonathan Hastings-Holmes house.