Sure and easy development of plates and films (1904)
Hinton, A. Horsley (Alfred Horsley), 1863-1908 · London : Hazell, Watson & Viney · leaf 37
Uiulei-exiiu.sed ]il;itt- dex eJoped w ith normal dexeloper Fig. 7.— and giving excessive contrast. … Fig. 8. — Undei-expysed plate developed with diluted developer, showing improvement. Mg. 9.— Correctly exposed plate (same as No. 1), development carried too far.
Photography · Photography -- Developing and developers
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.