TRANSLATOR'S PREFACE. 



The science of Histology has made rapid advances of late 

 years, and many new facts have been acquired in this depart- 

 ment. This will be readily appreciated by those who are 

 familiar with the excellent and exhaustive text-books of 

 Frey and Strieker. But many are intimidated by the very 

 copiousness of such works. 



Even in Germany, where thoroughness is the great excel- 

 lence, there is a demand for a compendium. That Professor 

 Frey's little book meets this want, is proved by its enormous 

 sale and the favorable notices of the press. 



I hope that this translation may meet with the same kind 

 reception as did that of our Author's work on Microscopic 

 Technology. 



GEORGE R. CUTTER, M.D., 



No. 228 East Twelfth Street, New York. 

 August, 1876. 



