Tuer Author has been prevented by illness from completing the 
Introduction which it was proposed to issue along with the second 
part of his Memoir on the Hepatic of the Amazon and of the 
Andes of Peru and Ecuador. As the printing of the descriptive 
portion of the work, and of the plates (22 in number), has long been 
completed, it has been decided to issue Part II. without further 
delay. 
The work, as it stands, comprises, besides full descriptions of 
every species, notes under each tribe (or sub-tribe) and genus on 
the characters, habits, and distribution in equatorial America of the 
species comprised in it.. The world-distribution of the few widely- 
dispersed species is added, so far as the materials at the Author’s 
disposal enabled him to ascertain it. Synopses of the genera in each 
tribe, or sub-tribe, and of the species in each genus, or sub-genus, are 
also given, so that the work is technically complete. 
The additional matter on the physical features of the regions 
explored, and their connection with the vegetation—especially the 
hepatic vegetation—with critical remarks on certain of the genera 
and species, the Author proposes (if he is able to complete it), to 
present to the Botanical Society in the shape of a Supplement to 
the work. 
I a EN I ESE RR SOE 2ST Oo aS 
