162 



BIRDS or AUSTRALIA. 



No. 2. 



This sketcli represents a section through the mound in its undis- 

 turbed state ; the pale tint indicates the portion of sand, the darker tint the 

 leaves, &c. 



No. 3. 



This sketch shows a bird's-eye view of the mound, as seen from above ; 

 the sand is supposed to have been so far thrown out as to leave the tops 

 of the eggs exposed, and to show them standing upright in their relative 

 positions, -^ 



