Very much the same may be said of the prints toned by this bath as of those
toned by No. 7. The color is not very good, nor is the toning quite even.
This last remark applies to No. 7 batch as well as No. 8.

9.--Gold chloride...................... 1 gr.
Phosphate of soda.................. 20 gr.
Water.............................. 2 oz.

The results of this bath can best be described as purplish in color. They
are decidedly more pleasing than those of 7 or 8, but are not as good as
the best by the sulphocyanide bath.

10.--Gold chloride..................... 1 gr.
Hyposulphite of soda.............. ½ oz.
Water............................. 2 oz.

The result of this bath is a brilliant brown color, what might indeed,
perhaps, be best described as a red. Two out of the three prints are much
too dark, indicating, perhaps, that this toning bath did not have any
tendency to reduce the intensity of the image.

The general lesson taught by Clark's experiments is that the sulphocyanide
bath gives better results than any other. A certain proportion of the
ingredients--namely, that of bath No. 3--gives better results than any
other proportions tried, and about as good as any that could be hoped for.
Any of the ordinary alkaline toning baths may be used, but they all give
results inferior to those got by the sulphocyanide bath. The best of the
ordinary baths is, however, the phosphate of soda.

And now a word as to those parts of the prints which have been treated with