[Histonet] Mc Neal's tetrachrome

[Myri37 <@t> aol.com]

Hi everyone
i have a recipe to make Mc neals tetrachrome (found on histonet)
0.5 g methylene blue
0.8 g azure A
0.1 g methylène violet
250 ml methanol
and 250 of glycerin, could someone tell me if it's 250 ml or 250 µl or something else?
i need to do it very soon, could you please answer me quickly.
Thank you very much in advance.
Myriam baali
Natural implant