Embryology. 181 
ably give us important additional light. 
he manual of Dr, Hertwig will doubtless fill a lene want ; 
and it is to be hoped that it will be made accessible to the English- 
reading student through a translation by some capable person. As 
an aid in understanding many questions in pathology, physiology, 
the structure of the brain and mechanism of the nervous system, 
this little work will undoubtedly be found to be of great ogee 
lightening the burden of the overtaxed medical student in his 
