i 
i 
ee EE ne RA Ts a EN FI FRYE ON UES Re Fe 
aa i A pt eae 
- eer 
MEMOIRS 
OF THE 
AMERICAN ACADEMY 
OF 
ARTS AND SCIENCES. 
ei 
VOL. IIL—PART 1.97 
Mo,..Bot.... Garden pe 
1897. 
a ee 
CAMBRIDGE, 
PRINTED BY HILLIARD AND METCALF. 
1809. 
