VI TRANSLATOR S PREFACE. 



that the several parts as they were successively published 

 would represent the most recent acquisitions to our knowledge 

 of Histology than the high authority of Professor Strieker 

 and the names of the distinguished workers who had con- 

 sented to co-operate with him in its production ; especially as 

 to the care of each of these writers was consigned the subject 

 to which he had paid particular attention ; and the translator 

 was glad to find, after he had for some time been engaged 

 upon it, that his own opinions respecting the merits of the 

 treatise were concurred in by men who were so peculiarly 

 qualified to judge as Professors Huxley and Turner. 



The translation occupied nearly seven months, and the print- 

 ing four ; it is therefore only about one year behind the date 

 of the original, and it is hoped that the second volume will be 

 issued still more quickly after the appearance of the last part, 

 which is promised in the autumn of the present year. 



The translator had accumulated some material which he 

 thought might be advantageously added in the form of an 

 appendix, to show the progress that had been made in the 

 different subjects discussed in the text during the past twelve 

 months; but upon consideration it was thought better to 

 omit them, and they will appear in a condensed form in the 

 " Biennial Retrospect," to be published, as usual, at the begin- 

 ning of 1871. 



In conclusion, the translator may be allowed to add that he 

 has endeavoured to give as faithful a rendering of the original 

 articles into English as possible; and though conscious of 

 occasional obscurities in diction, he trusts that the inaccuracies 

 that may be found will be neither numerous nor important. 



HENRY POWER. 



SEYMOUR STREET, LONDON. 

 July 5th, 1870. 



