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.
Fill the hollow end of an ordinary penholder with cotton - not too tightly - and one dip of the pen will hold enough ink to write a full page. The cotton should be changed each day. A small piece of sponge will answer the same purpose. It is necessary to dip the pen deeply into the ink. - Contributed by J. E. Noble, London Junction, Ontario.