Beginners' zoology . Fig. 222. —Brain ofPerch, from above. K, end of nerve of smell;aw, eye; v, z, m, fore,mid, and hind brain;h, spinal bulb; r, spi-nal cord. FISHES 119 front of the optic lobes lie the two cerebral lobes, or the small olfactory lobes are seen (Fig. 224) in front of the cere-brum. The olfactory nerves may be traced to the nostrils. Behindthe optic lobes (mid brain) is the cerebellum (hind brain) and behind it is the medulla oblongataor beginning of the spinal

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectzoology, bookyear1921