Source: Sec 32, The Second Treatise of Civil Government, 1690, by John Locke
As much land as a man tills, plants, improves, cultivates, and can use the product of, so much is his property. He by his labour does, as it were, inclose it from the common.
Should there be a noun after so much? 'so much [OF WHAT] is his property' ?
Footnote: I encountered this excerpt at the 11 mins 7 s juncture of Justice: What's The Right Thing To Do?, Episode 04: "THIS LAND IS MY LAND"