Combinations of colours with tints and with shades [microform]
A 1905 Toronto university library publication by F. Louis Barber and T. R. Robinson, issued by the librarian, studying how colours combine with tints and shades, and is a scholarly work on colour perception. The first three pictures are wavy line graphs of paired solid and dotted traces across numbered positions, drawn in black ink on a grey ground, while the last is a black plate with two framed square-and-diamond motifs; a designer might borrow the layered, overlapping line rhythms for data graphics or use the stark square test patterns as a reference for contrast studies.
![Picture 1 of 6 from Combinations of colours with tints and with shades [microform] (1905), leaf 31](https://img.insideoutlibrary.com/img/200/ia-cihm_83026-31-0.webp)
![Picture 2 of 6 from Combinations of colours with tints and with shades [microform] (1905), leaf 39](https://img.insideoutlibrary.com/img/200/ia-cihm_83026-39-0.webp)
![Picture 3 of 6 from Combinations of colours with tints and with shades [microform] (1905), leaf 45](https://img.insideoutlibrary.com/img/200/ia-cihm_83026-45-0.webp)
![Picture 4 of 6 from Combinations of colours with tints and with shades [microform] (1905), leaf 101](https://img.insideoutlibrary.com/img/200/ia-cihm_83026-101-0.webp)
![Picture 5 of 6 from Combinations of colours with tints and with shades [microform] (1905), leaf 112](https://img.insideoutlibrary.com/img/200/ia-cihm_83026-112-0.webp)
![Picture 6 of 6 from Combinations of colours with tints and with shades [microform] (1905), leaf 116](https://img.insideoutlibrary.com/img/200/ia-cihm_83026-116-0.webp)