This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
The following mixture I have used with the best results for years. Thoroughly mix together 3 pt. of wheat flour and 1 pt. of powdered whiting, then add sufficient water to make a dough. To clean a dirty papered wall, take a piece of the dough that can be easily grasped in the hand, press it against the surface and make a long stroke downward. During the process of cleaning, keep kneading the dirt into the dough. The preparation can be mixed in any amount desired by using the proportions named. - Contributed by C. W. Bause, Jr., E. Troy, Wis.