CONTENTS. 



I. Elcpliaiils, Eeceiit and Kxliiict 



II. Tusks and tlieiv I'scs 



TIT. :\roles and tlieii- Like 



I\'. Spiny .Yninials 



A'. Parallelism in Dcvolopnionl 



VT. Toothed "Whales and their Aneeslvy 



"\'1T. AYhalebone and Wlialebonc AVhales 



TITT. Tiuniinants and their T)istvibntion 



IX. The Tallest Mammal 



X. LeniLii's .... 



XI. Armadillos and Aavd-Varks 



XIT. The 01de.st JIannnals 



XIII. Crocodiles and Alligators 



XIV. The Oldest Fishes and their Fins 

 XA' Living Fossils 



X_X'I The Extinction of Animals 



XA'II. Protective Pesemblance in Animals 



XVIII. Sca-L'rchins 



XTX. Xnninndites and Mountains 



X.V. A Lump of Chalk and its Lessons 



XXT. A Flake of Flint and its History 



FA.GF. 

 1 



14 



.36 



4t; 



86 

 96 

 108 

 121 

 1.33 

 142 

 153 

 164 



nr, 



185 

 195 

 200 

 210 



