Note 870 — PART IX.—INORGANIC POISONS. (continued 3)
Reading edition
According to Eulenberg (Gewerbe Hygiene, p. 716), Oleum cajepute, Menth. pip., Melissæ, Tanaceti, &c., are almost always contaminated with copper.
[871] Tardieu, Étude Méd. Lég. sur l’Empoisonnement.