140 
Geology of Sydney. 
Dr. F ritscli described some small forms from the 
Carboniferous of Bohemia, in which traces of the gills 
of their early life were preserved, showing that they 
breathed in water as fishes do. 
Kio. 34.— Head of Mastodousaurus. One-seventh the natural size. 
While this chapter is being written, the Associa- 
tion for Science, meeting at Sydney, is publishing the 
fact that its members succeeded in having a whole 
island reserved on the New Zealand coast for the 
Tuatara lizard. Now, it may be asked, what possible 
