Pennsylvania Statutes Title 3 P.S. Agriculture § 81. Use of night soil as fertilizer prohibited; “night soil” defined

It shall be unlawful to use night-soil as a fertilizer, or otherwise, on any ground on which vegetables of a variety or varieties which are eaten uncooked for human food are being grown: Provided, however, That the term “night-soil,” for the purposes of this act, shall be construed to include only human excrement, and the contents of privy-wells; and that any such night-soil which shall have been treated by any process approved by the Commissioner of Health  1 of the State Department of Health, to remove its objectionable features, shall not be within the prohibition of this act.