COCEIDAS, OF FERVEON: 
N the original prospectus of this work, I estimated that it would 
be completed in 4 Parts, each containing 30 Plates. But so 
much additional material has been accumulated during the progress 
of the work that this has been found to be impracticable. The 
present (4th) Part contains many additional plates which (with the 
several supplementary plates) bring the total number up to 135, 
or 15 plates more than the number promised to my subscribers. 
For the completion of the monograph it will be necessary to bring 
out a 5th Part, of double size, containing from 50 to 60 plates. 
I propose to offer this to my subscribers at the price of 355. 
Afterwards, the complete monograph will be procurable by the 
general public at 7 guineas. 
E, ERNEST GREEN. 
