DITOF^S 
r 
P V EFACE, 
/ 
In the capacity of Editor of tlic Palaeontological Memoirs of the Geological 
Survey it affords me much pleasure to pass through the press Professor O. 
Eeistmantel’s “ Palaeozoic and Mesozoic Plora of Australia.” 
I have endeavoured to retain the Author’s arrangement in Part II as 
intact as possible, hut an occasional idiomatic alteration has been found 
necessary, and some transpositions of dates and names in the synonomies 
requisite to bring the work in accord with the plan adopted for the other 
Memoirs of the Department. 
Occasional foot-notes have been added, but to distinguish them from 
the Author’s the former are placed within square brackets, thus [ ], and 
initialed by the undersigned. I have also added an Index to genera and 
species, and in some cases amplified the references. 
Professor Ecistmantel distinctly wishes it to be understood that his 
work is inclusive only to 1887. 
P, ETIIE11IDGE, Jun. 
Si/dnei/, December , 1889. 
