BOTANICAL 



MICRO-CHEMISTRY 



AN 



INTRODUCTION TO THE STUDY OF 

 VEGETABLE HISTOLOGY 



PREPARED FOR THE USE OF STUDENTS 

 BY 



V. A. POULSEN 



TRANSLATED WITH THE ASSISTANCE OF THE AUTHOR 

 AND CONSIDERABLY ENLARGED 



BY 



WILLIAM TRELEASE 



PROFESSOR IN THE UNIVERSITY OF WISCONSIN 



Boston 



S. E. CASSINO AND COMPANY 

 1884 



