480 PHYSIOLOGICAL SERIES. 



D. 717. A similar section passing through the splenium corporis 

 callosi. 



It exposes the upper part of the descending cornu of the 

 lateral ventricle and also the floor of the fourth ventricle. 



0. C. 1339 cb. 



D. 718. A similar section cutting the cerebellum at its maximum 

 breadth. 0. C. 1339 cc. 



D. 719. A similar section passing through the occipital poles of 

 the hemispheres. 0. C. l&W c d. 



D. 720. The pons Varolii, medulla oblongata, and cerebellum of 

 a human brain. 



The medulla oblongata has been dissected by Mr. Swan 

 in order to show the pyramidal decussation. 



0. C. 1339 E 16. 



D. 721. A sagittal section through the lateral mass of the human 

 cerebellum. 



This shows the dentate nucleus lying in the medulla. 



0. C. 1339 E 18. 



D. 722. A dissection to show the nerve-fibres collecting from all 

 parts of the cerebral hemisphere to form the pes pedmieiili. 



0. 0. 1339 E 10. 



D. 723. A similar specimen. 0. 0. 1339 K 1 1. 



D. 724. A dissection of the human medulla oblongata to show 

 the pyramidal decussation. 0. C. 1339 ]>;>1. 



D. 725. A preparation of the human optic thalami, mid-brain, 

 pons, and medulla oblongata in which a bristle has been 

 passed from the 3rd to the 4th ventricle through the 

 aqueduct of Sylvius. 



D. 726. A dissection to show the behaviour of the fibres of the 

 corpus callosum, in the cerebral hemispheres: moial view. 



0. C. 1339 D 7. 



D. 727. A specimen showing the relations of the corpus callosum 

 to the cerebral hemispheres from above. 0. C. 1339 D 8. 



