Case pg45-8, fig1,2. Soma notes 17 adult Sprague-Dawley rats were used. 3 rats received bilateral injections. Intraocular injections consisted of 1-10 microlitres of 33% HRP. In 1 case 4 microl of 1% WGA-HRP conjugat in saline was injected. . Terminal notes In 17 rat injections, retinal axons were traced to the contralateral pericentral nucleus of the inferior colliculus. Fibres sweep caud and lat forming a thin layer throughout much of dor pericentral IC. Smaller contigent in small area near SC..