. Breviora. 1066 THE BRAIN OP THE EMU Figvn-e 1 is drawn from a reconstruction of tlie foreln-ain of the emu, the main ganglia or nnclei being shown in seven sections at the levels indicated l)y the vertical lines drawn on the hiteral view of the whole brain (insert). The wulst or nucleus diffusus (HxV, HD) is seen in five sections; beginning with the most anterior it is the largest; in the second and third it is large and then tapers off in the fourth and fifth. The largest nucleus of all, the nucleus epibasalis centralis (N and E), ap- pears as a small part of the third section and enlarges
. Breviora. 1066 THE BRAIN OP THE EMU Figvn-e 1 is drawn from a reconstruction of tlie foreln-ain of the emu, the main ganglia or nnclei being shown in seven sections at the levels indicated l)y the vertical lines drawn on the hiteral view of the whole brain (insert). The wulst or nucleus diffusus (HxV, HD) is seen in five sections; beginning with the most anterior it is the largest; in the second and third it is large and then tapers off in the fourth and fifth. The largest nucleus of all, the nucleus epibasalis centralis (N and E), ap- pears as a small part of the third section and enlarges caudally until it is the only ganglion present in the most caudal section. ()ther main nuclei can be similarly traced to show their antero- posterior r('lati()ushij)s. Tlic relation of one nucleus to another in any one section can be seen in the photographic reproduction LAMINA FRONTALIS SUPREMA- LAMINA FRONTALIS SUPERIOR- LAMINA HYPERSTRIAT. PARAHIPPOCAMPAL CORTICOID AREAS VENTRICLE Fig. lA. A diagrammatic representation of the dorsoventral relations of the principal forebrain ganglia, but no one section could show all of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. , Museum of Comparative Zoology, Harvard University
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