New Investigations on the Furthest Limits of Colour-Perception by Direct Sun-Light and by Electric LightBr Med J 1879; 2 doi: https://doi.org/10.1136/bmj.2.979.531 (Published 04 October 1879) Cite this as: Br Med J 1879;2:531
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial