An Experiment with Stone Lithography

By the time I finished grinding my limestone, it was six, and the office closed. This means I wouldn't be able to etch my stone, right?
Wrong!

I read the notes i posted a few days back, and if it's a delicate drawing, it won't require any nitric/phosphorous acid in the Gum Arabic for the etch.
With nothing to lose, we experimented to see the outcome. Previously, we suspected that the transfer was over etched, so this time round, this is the result without acid:

pouring gum arabic over the transfer on stone
(after rosin, french chalk)

got help with snake-ing,
rather clean after the first roll up

first printing turned out quite alright

lithography print 1

but the second roll up made the print really
(what's that word...)...
rephrase, the image picked up too much ink
therefore the image turned out darker than it should
this is what happened to the image on the stone

In conclusion, we still need maybe a few drops of acid for etching the yellow limestone with a photocopy transfer image.