From the Journal of Photography of the George Eastman House, Volume IV, Number 4, April 1955, p.25 (first page):
"So great was the demand for this popular product that the Dresden Albumenizing Company, the largest in the world, used 60,000 eggs each day. Girls did nothing all day long but break eggs and separate the whites from the yolks. The whites were then churned and the yolks sold to leather dressers for finishing kid and fine leathers."
It's also interesting to note that the accompanying advertisement depicts a rather handsome chicken announcing the albumen paper to be "Easy Working!" "No Blisters!" "Extra Brilliant." and available at a cost of $1.00 for a dozen sheets.