The chief wheat lands are in Victoria, South Australia and New South Wales; the yield averages about 9 bushels to the acre; this low average is due to the endeavour of settlers on new lands to cultivate larger areas than their resources can effectively deal with; the introduction of scientific farming should almost double the yield.
The last have nibbled for me a quarter of an acre clean.
An acre used to yield on an average 300 tons of phosphatic nodules, value £750.
They fell out at Acre in 1253.
Taking these figures as a basis, the total yield of oil from an acre of petroliferous territory would be a little over 5000 barrels of 42 U.S. gallons.