When discussing the value of sewage, Denton records that Jean-Baptiste Boussingault, a chemist, demonstrated that a harvest of 800 pounds (360 kg) of wheat and 900 pounds (410 kg) of barley can be obtained from the nearly 16 pounds (7.3 kg) of nitrogen an adult's body-waste produces yearly.[2] In addition, 9s (£61 at present worth[3] as of 2025) was calculated by Dr. Augustus Voelcker, the consulting chemist for the Royal Agricultural Society of England, to be the annual value of ammonia and phosphates excreted per head.[4]
Honorary
Honorary member of the R.A.S.S. of Denmark, Sweden, and Hanover.[5]