. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 204 below, have hitherto been published, simply because it has never occurred to me to question the olfactory nature of the tuberculum olfactorium. The passage of fibres from the tractus olfactorius (not the mesial olfactory root, as Calleja and others imagined) into the cortex of the tuberculum olfactorium is visible to the naked eye in many of the larger macrosmatic mammals, but I have never seen this tract so obtrusively shown as it was in the fresh brain of an Orycteropus aethiopicus, which died in the Giza Zoological Gar
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. 204 below, have hitherto been published, simply because it has never occurred to me to question the olfactory nature of the tuberculum olfactorium. The passage of fibres from the tractus olfactorius (not the mesial olfactory root, as Calleja and others imagined) into the cortex of the tuberculum olfactorium is visible to the naked eye in many of the larger macrosmatic mammals, but I have never seen this tract so obtrusively shown as it was in the fresh brain of an Orycteropus aethiopicus, which died in the Giza Zoological Gardens about three —Bulbus olfactorius Tractus bulbo-tuberc. Pedunculus olfactorius — Tuberculum olfactorium Locus perforatus Chiasma Lobus pyriformis —y— A—Tractus olfactorius —>*/,V-Tuber, tract, olf. Fig. 1. Diagram representing the ventral surface of the anterior pai-t of the left cerebral hemisphere of Orycteropus aethiopicus SuNDEV. years ago, and for which I am greatly indebted to Captain Flower, the Director of the Gardens. The general features of the brain of the Aard-vark I have de- scribed in considerable detail ^). The special peculiarities of the Giza specimen are shown in the accompanying diagram (Fig, 1), representing the ventral aspect of the anterior half of the left hemisphere. Emerging from the bulbus olfactorius on the ventral surface of the pedunculus is the large tractus olfactorius, the caudal end of which is seen ending at the tuberculum tractus. The greater part of the tract, however, is 1) The Brain in the Edentata. Transactions of the Linnean Society of London, 1898, p. 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 Anatomische Gesellschaft. Jena : G. Fischer
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