BIOLOGISTS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z           HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site Purkinje, Johannes Evangelista (1787–1869) Bohemian-born Czech physiologist and pioneer of histology, best known for his observations of nerve cells (see neuron) and discovery of the Purkinje effect, that at different overall light intensities the eye is more sensitive to different colors. Related categories    • BIOLOGISTS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP