Allen W. McDonnell
How To Keep Your Old John Deere Plowing: Diesel Fuel Alternatives For Grantville 1631-1639
From: Grantville Gazette, Volume 4
The Ring of Fire has left many of the farms around Grantville scrambling to train enough horses for the fall harvest. About half of the tractors that came through the Ring Of Fire were designed to burn gasoline and with the help of the agriculture department they will be converted to use pressurized natural gas in its place in 1631.

