John Bailey Denton (1814–1893) M. Inst.
; F.G.S., was a British surveyor and civil engineer.
[1] 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.
[5] This list is taken from ODNB[1] and Works by Mr Bailey-Denton, M. Inst.