![](https://i0.wp.com/anneketerschure.nl/wp-content/uploads/2016/06/img_20160628_215634550.jpg?fit=3015%2C1695&ssl=1)
This is a grass root that received the KOH and acid rinsing treatment followed by only 1-2 minutes of exposure to the 5% solution of the greenish-blue ink.
This is a grass root that received the KOH and acid rinsing treatment followed by only 1-2 minutes of exposure to the 5% solution of the greenish-blue ink.