for additional context - https://en.wikipedia.org/wiki/Vivisection#David_Ferrier_and_the_Cruelty_to_Animals_Act_1876 https://en.wikipedia.org/wiki/Vivisection#D

for additional context - https://en.wikipedia.org/wiki/Vivisection#David_Ferrier_and_the_Cruelty_to_Animals_Act_1876 https://en.wikipedia.org/wiki/Vivisection#David_Ferrier_and_... - it were the years when they started to at least limit vivisection somewhat and require anesthesia during it.