Green Cross (chemical warfare) The mixture was chlorine-phosgene, with 95% and 5%. Green Cross (chemical warfare) Green Cross (Grünkreuz) is a World War I chemical warfare pulmonary agent consisting of chloropicrin (PS, Aquinite, Klop), phosgene (CG, Collongite) and/or trichloromethyl chloroformate (Surpalite, Perstoff). Green Cross is also a generic World War I German marking for artillery shells with pulmonary agents (chemical payload affecting the lungs). The tip of the projectile with the fuse end painted green and a green cross at the bottom of the cartridge. Other Green Cross mixtures were based on phosgene and/or diphosgene. The first use of Green Cross was on May
Tre- (place name element) Tre- (place name element) Tre- is a place name element of Celtic origin meaning "hamlet, farmstead, estate", etc. which survives mainly in Wales and in the Southwest of England (almost exclusively in Cornwall). The manor of Trefusis was thus originally held before the Norman Conquest of 1066 by an Anglo-Saxon named "Fusis" or similar, thus "Farmstead of Fusis". The Cornish place-name beginning "Tre-" may be compared to the Cornish place-name beginning "Bod-" and the place-name endings "-worthy" and "-cot" in Devon, and "-ham" and "-tun / -ton" throughout England. In a study by Oliver Padel of surviving place names in