92 



Development of Occipital Nerves in Human Embryos 



The roots of the e-audal cud of the cord are somewhat tardier in their 

 development, and at this stage the lumbar ploxus is only slightly 

 indicated. 



Opthal. div. 



Sup rndLxdiv. 

 masticatorius. 



Jnf max.div. 



"Oar\g. nodos. 

 Fig. 5. Reconstruction of right side of same embryo shown in tig. 4. 



Sens. organ on gang.petros. 

 Fig. 6. Reconstruction of peripheral nerves in four weeks human embryo, 7.0 mm. long, 

 MaU collection No. 2. Enlarged 18.7 diams. 



On the right side of Embryo Br3 (see Fig. 5), and on the left side of 

 the Buxton Embryo, the first cervical ganglion consists of but a small 

 clump of cells showing no connection with the ventral root, which root, 



