TABLE OF CONTENTS: 



LECTUEE I. 



INTRODUCTORY. 



The New Things of Biology, 

 Time, the Sexton, 

 Duckbill and Echidna, 

 Groups of the Mammalia, . 

 Charles Darwin, 

 The first Historical Man, . 

 The Australian Region, 

 The first Creature with Nails, 

 Primary Amphibia, . 

 Protozoa and Metazoa, 

 Low Ancestral Types, 

 Family Arrangements, 



Page 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 



10 

 11 

 12 



Page 



Care of the Offspring, . . 13 



The Crown of Creation, . . 14 



Larviform Embryo of the Mole, 15 



Great Weights on Small Wires, 16 



Influence of Surroundings, . 17 



Adaptation or Extinction, . 18 



Metamorphosis of the Frog, . 19 



Man's Ancestors all buried, . 20 



Eastern Cosmogony, . . 21 



Hyperbolical Asiatics, . . 22 



A Buddhist Miracle, . . 23 



Antiquated Theories, . . 24 



LECTUEE II. 



PROTOTHEIUA (MONOTREMATA). 



The Duck-billed Platypus, . 25 



Negative Evidence, . . 26 

 The Ceratodus a Gift of Provi- / 



dence, 27 



The Lancelot and Sea-squid, . 28 



TheAxolotl, .... 29 



Lower parts of the Earth, . . 30 



Mammalian Advance, . . 31 



The Prototheria quasi-Reptilian, 32 



Shoulder-bones of Duckbill, . 33 

 Three Collar-bones in Mono- 



tremes, 34 



Extinct Birds, .... 35 



Feeling the Way upwards, . 36 



The Duckbill's Skull, . . 37 

 Opening a new Scroll, 



Hinge ing of the Lower Jaw, . 39 



Surgery- or Horticulture, . . 40 



Formation of the Lower Jaw, . 41 



Compound Nature of the Lower 



Jaw, 42 



Bones forming the Ear-chain, . 43 / 



New Elements of the Ear, 44 



The Egg-breaking Beak, . 45 



The Frog's Kindred, . 46 



Ancestors of the Mammalia, 47 



Young Duckbills, . . 48 



All Animals come from Eggs, 49 



Evolution of a Hairy Creature, 50 



Relation of Mammals to Reptiles 51 f 



Jacobson's Organs, . . 52 



Old and New Structures, . 53 



A Country without Birds, 54 



Skeleton of the Prototheria, 55 



Primary Respiratory Organ, 56 

 Respiration of a Soft-shelled 



Turtle, 57 



Oxygen consumed in Pharyngeal 



Respiration, . . . . 58 



