FlG. 7. SMOOTH NEWT MOULTING ITS SKIN AFTER 



RETURNING TO THE WATER FOR THE BREEDING 



SEASON 



FlG. 8. 



Note the male newt's flowing crest and broad tail. 



MALI; AND FKMALE SMOOTH NEWTS AT THE 

 HEIGHT OF THE BREEDING SEASON 



Gang/Ian 



A 



I 



From " The 

 School Science 

 Rtfvfcv." 



STARVING 

 FLAT-WORMS 



The illus- 



tration shows 

 the reduction 

 in size as the 

 result of star- 

 vation in flat- 

 worms. i, be- 

 fore; 2. after 

 prolonged star- 

 vation. 



'Stomach 



From " The School Science Review." 



"LIVING BACKWARDS" 



(See text for explanation.) 



1. A normal individual of Clavellina. 



2. The same individual de- 

 differentiated. 



