FOOTNOTES:
[1] It was afterwards found that these colour changes through variations of intensities were due to a natural law to be described under the heading of “Specific colour.” (See page 32.)
[2] For description of the light and colour units, refer to chap. III, page 9.
[3] It was found that the superimposition of two glasses did not visually disturb equivalence, therefore only two glasses were used for each observation in constructing the scales.
[4] This method of illustration was suggested by Dr. Herbert Munro.
[5] Reprinted from the Journal of the Society of Dyers and Colourists, March, 1913. No. 3, vol. xxix.
Transcriber’s notes:
In the text version, italics are represented by _underscores_, and bold and black letter text by =equals= symbols. Superscripts are represented by ^{} and subscripts by _{}
Missing or incorrect punctuation has been repaired.
Inconsistent spelling and hyphenation have been left,
In the html version, dittos have been replaced by the repeated text so that text aligns for easier reading.
Very wide tables (V and VI and VII)have been split to fit on portrait oriented pages.
The following mistakes have been noted:
- p. 21. NiSO_{4}7H_{2}O, tem." is formatted inconsistently. Left as printed.
- p. 40. Fraunhoper is almost certainly a typo for Fraunhofer. Left as printed.
- p. 46. interpretated changed to interpreted.
- p. 55. In Paper 6 of table, Red screen, yellow entry, from alignment and logic, the 6 should be .6. Left as printed
- p. 61 conditonschanged to conditions.