Cosmetic Soaps for Washing the Hands
Take a pound of castile soap, or any other nice old soap; scrape it fine; put it on the fire with a little water, stir it to a smooth paste; turn it into a bowl; add any kind of essence; beat it with a silver spoon till well mixed; thicken it with Indian meal, and keep it in small pots, closely covered; exposure to the air will harden it.
Source: Our Knowledge Box, ed. G. Blackie
For Cleaning Hair
Make a thick suds with castile soap and one pint of soft water; add one egg well beaten, two tablespoons of ammonia and two teaspoons of pulverized borax. Bottle it; pour a little on the hair and rinse it off with clean water.
Source: 76: A Cook Book