Rhubarb jam (old) recipe

15 c Rhubarb, cut up
14 c Sugar
8 Oranges
1 c Walnuts
Put oranges through food chopper. Put sugar and oranges over rhubarb and let soak overnight. Next morning cook slowly for 1 1/2 hours. Add walnuts and put in hot jars. This makes 5 to 6 quarts (5 to 6 liters).