11. Other cases of decay and discolouration were noted, but attributed to unidentified microorganisms. 12. It suffers from a virus disease that causes leaf discolouration , yellowing and streaking. 13. Jaundice is a yellow discolouration of baby's skin and whites of the eyes. 14. This discolouration is due to the large number of tea trees present in the area. 15. Discolouration of the rope may also occur, thus giving an early warning of the problem.16. A quick dip in hydrochloric acid removes the discolouration very fast, and leaves copper behind. 17. The practice led to significant wear and visible discolouration on the lower portion of the pillar. 18. Diagnostic of extreme poisoning by is the discolouration of copper coins in the pockets of the victim. 19. The thallus of a crustose lichen is usually only discernible because of the discolouration of the substrate. 20. This is evident from weak, mostly brownish discolouration and / or structure formation in the soil profile.
