Camera lucida drawings of flat-mounted retinas showing the setup of the experiment (A) and five examples with injection performed at E10 and analyzed at E14 (B, D, E) and E16 (C, E). The dotted area indicates the location of retrogradely filled ganglion cell bodies, whereas lines indicate anterogradely labeled axons from the injected retina. Note that the cells are located predominantly within the nasal hemiretina, and axons are located within the temporal hemiretina. The arrow points to the ventrally located optic fissure.