4 CONTENTS 



-. The increase of the epiphysorcrebral index during life in man.. 213 

 /. The resistance to the enrronrhment of the corpus callosum in 



inaimnuls 21<> 



3. Evidence based on the histology of tin- cpiphyseal complex 217 



4. The relation of 1 he pariet al eye to t lie pineal body -- 1 ' 1 



5. The phylogenetic significance of the parietal eye \\ith reference to 



vertebrate and invertehrate 



8. Summary and conclusions i". s 



9. Bibliography 210 



