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.
A good liquid preparation for cuts and bruises that forms A covering like liquid court-plaster is made by mixing 3/4 oz. of flexible collodion with 1/4 oz. of ether. When this solution is applied to cuts it will not wash off. As the ether evaporates, add more to keep the mixture liquid.