manural

Updated: May 18, 2025

"But, as you know," said Percy, "milk is the only food of young animals, and they must secure their bone food from the milk. Furthermore, the complete analysis of milk shows that it contains very considerable quantities. There are also records of digestion experiments in which less than one-half of the phosphorus in the food consumed was recovered in the total manural excrements.

Cyril G. (Cyril George) Hopkins - The Story of the Soil; from the Basis of Absolute Science and Real Life,