Disposition of Fibers of Retinal Origin in the Lateral Geniculate Body

The manner of ending of crossed and uncrossed fibers of the optic tract in the lateral geniculate body has received comparatively little attention, although the projection of the various quadrants of the retina on the lateral geniculate body has been thoroughly investigated (Brouwer,1Brouwer and Zeeman,2Overbosch,3Le Gros Clark and Penman4and others). Minkowski5was the first to demonstrate that there was a separation of retinal fibers of crossed and those of uncrossed origin in the lateral geniculate body in a number of animals. This he found to be true in the rabbit, cat, goat and monkey. He was able to show that in consequence of the removal of one eye, the animal being allowed to live for several weeks before it was killed, a chromatolytic degeneration of the cell bodies in certain of the cellular layers in the lateral geniculate body resulted. By