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CONTENTS. 



PAGE 



I. Introduction 1 



II. Material 3 



III. Pars Mammillaris Hypothalami 4 



IV. Ganglion Opticum Basale 7 



A. Location and extent of tlie ganglion opticum basale 



1. Man 8 



2. Macacus rhesus 11 



3. Lemur rufus 11 



4. Cat 12 



B. Cell type of the basal optic ganglion 13 



C. Separation of the basal optic ganglion from surround- 



ing cell groups through differences in cell char- 

 acter 14 



V. Nuclei Tuberis Laterales 18 



A. Location and extent of the nuclei tuberis laterales 



1. Man 19 



2. Macacus rhesus 21 



B. Separation of the nuclei tuberis laterales from sur- 



rounding cell groups through diiterences in cell 



character 21 



VI. Relationship of the Various Cell Groups to One Another 23 



VII. Conclusion 27 



VIII. Literature 31 



IX. Bibliography 38 



X. Explanation of Illustrations 39 



