publications 



OK THE 



Ulniversit^ of Pennsylvania 



New Series No. 5. 



CONTRIBUTIORS FROM THE 



Botanical Laboratory 



Vol. II. No. I. 



Published for the University ok Pennsylvania 

 Philadelphia 

 1898. 



GiNN & Company, Agents for United States, Canada, and England 

 Q-13 Tremont Place, Boston, Mass. 



