Skin and leather fertilizers

1275. The refuse of the different manufactures of skin and leather, forms very useful manures; such as curriers' shavings, furriers' clippings, and the offals of the tan-yards and of the glue-manufactory. The gelatine contained in every kind of skin is in a state fitted for its gradual solution or decomposition; and when buried in the soil, it lasts for a considerable time, and constantly affords a supply of nutritive matter to the plants in its neighbourhood.