INDEX 



Phrynosoma orbicular e (Mexi- 

 can horned lizard or 

 horned toad) — photo- 

 graph, 194 

 Pithecanthropus or monkey- 

 man — skull compared 

 with skulls of chimpan- 

 zee and modern man, 

 88-90 

 Placentalium terra — zoologi- 

 cal province, 63, 64 

 Plesiosaurs : 



Extinct order of reptiles, 



192 

 Form and shape — probable 

 appearance in living 

 condition, 224 

 Number of kinds discovered 

 in Lias rocks of the 

 south of England, 225 

 Size of, 222 

 Skeleton of, 223 

 Plymouth — changes in coast 



level, 38 

 Polypterus — specimen of gan- 

 oid fish still living in 

 the Nile and other 

 African rivers, 248 — 

 photograph, 249 

 Prehistoric man : 



Antiquity of remains in 



Europe, 85-87 

 Drawing, skill in — photo- 

 graphs of engravings 

 upon bone and ivory, 

 etc., 90-92 

 Skull compared with that 

 of a monkey and of a 

 modern man, 87-90 

 Pritchard, Mr. Hesketh, 181 

 Protopterus — mud-fish of 

 Africa, 248 



Pteraspis — fish known by its 

 shields, which covered 

 head and body, where 

 found, etc., 257, 258 



Hinder region unknown, 

 258 



Specimens obtained by the 

 author in Hereford- 

 shire — unique speci- 

 mens, etc., 259, 260 



Pterichthys — discoveries 

 made by Hugh Miller 

 from rocks of his na- 

 tive hills at Cromarty, 

 252 



Cardboard model made by 

 Hugh Miller, 255 



Curious bony plates, soft 

 scaly tail, etc., 255 



Outline drawing of the fish, 

 254 

 Pterodactyles — flying reptiles 



Different kinds of Jurassic 

 pterodactyles — prob- 

 able appearance in life, 

 etc., 234, 235 



Extinct order of reptiles, 

 192 



Form, size, etc., as it ap- 

 peared in flight, 231 



Skeleton, 230 



Wings : 



Formation of — bat-like 

 appearance, etc., 232, 

 233 

 Preserved in sandy lime- 

 stone of Oolitic Age, 

 46,47 

 Pterygotus — scorpion-like 

 creature, 278, 280 



321 



