Re: gum preservatves

["zphoto@montana.net" <zphoto@montana.net>]

Lemon juice does the trick and was Demachy's method in 1897.
Chris

----- Original Message Follows -----
From: davidhatton@totalise.co.uk
To: alt-photo-process-l@usask.ca
Subject: Re: gum preservatves
Date: Thu, 04 Sep 2008 16:18:47 +0100

><p>
><br />
>Hi Loris,
></p>
><p>
>Is there any reason one can't add some acid to the mix,
>Oxalic or citric say, to give an increase in printing
>speed? You could have a non-smelling acidic mix then.. </p>
><p>
>David H
></p>
> 

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