Light and colour theories and their relation to light and colour standardization (1915)
Lovibond, Joseph Williams, 1833-1918 · London, E. & F.N. Spon, limited; New York, Spon & Chamberlain · leaf 123
PLATE XI SPECIFIC COLOUR CURVES OF HEALTHY AND DISEASED HUMAN BLOOD PERNICIOUS AN/EMIA NORMAL HEALTHY HUMAN case under treatment, Colour Units … Strata thicknesses sn fractions (fan Inch, SAME CASE,H"DDAY SAME CASE, 48™ DAY, Colour-Units. orL discharge from Hospital Colour* Zlnvle*
Light · Color
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Studies in the photometry of lights of different colours [electronic resource] / spectral luminosity curves obtained by the equality of brightness photometer and the flicker photometer under similar conditions (1912)](https://img.insideoutlibrary.com/img/200/ia-b21287569-65-0.webp)
