Illustrations 



FACING 

 PAGE 



THE ORA.\(. II \- \ Hum ROUNDED SKULL AND A LONG FACE . . 166 



. A York /oolo^ii-al Park. 



COMPARISONS OK THE SKKLKTONS OK HORSE AND MAN . . . .167 



Photo: KritMi Mii-nim (Natural History). 



A RECON- * OF TH* JAYA MAH (Coloured Illustration) . . 168 



PHOKII.K VIKW OK THE HEAD OK PITHECANTHROPUS, THE JAVA APE-MAX 



AN KAHLY OKKSHOOT KHO.M THE MAIN LINE OF MAN'S ASCENT . 170 



nioilt 1 l>y .1. II. McGregor. 



PILTDOWN SKULL . . . . . . . . . . .170 



From the reconstruction by J. H. McGregor. 



SAND-PIT AT MAUER, NEAR HEIDELBERG: DISCOVERY SITE OF THE JAW 

 OF HEIDELBERG MAN . . . . . . . . .171 



Reproduced by permission from Osborn's Men of the Old Stune Aye. 



PAINTINGS ON THE ROOK OK THE ALTAMIRA CAVE IN NORTHERN SPAIN, 



SHOWING A BISON AND A GALLOPING BOAR (Coloured Illustration) . 172 



PILTDOWN MAN, PRECEDING NEANDERTHAL MAN, PERHAPS 100,000 TO 



150,000 YEARS AGO ......... 174 



After the restoration modelled by J. H. McGregor. 



THE NEANDERTHAL MAN OK LA CHAPELLE-AUX-SAINTS . . . 175 

 After the restoration modelled by J. H. McGregor. 



RESTORATION BV A. FORESTIER OK THE RHODESIAN MAN WHOSE SKULL 



WAS DlSCOVKRKD IN 1921 ....... 17(5-177 



SIDE VIEW OK A PREHISTORIC HUMAN SKULL DISCOVERED IN 1921 IN 



BROKEN HILL CAVE, NORTHERN RHODESIA ..... 178 

 Photo: British MUM-UIU (Natural History). 



A CROMAONON MAN OR CROMAGNARD, REPRESENTATIVE OF A STRONG 

 ARTISTIC RACE LIVING IN THE SOUTH OF FRANCE IN THE UPPER 



ISTOCENE, PERHAPS 25,000 YEARS AGO ..... 178 

 After the restoration modelled by J. H. McGregor. 



PHOTOGRAPH SHOWING A NARROW PASSAGE IN THE CAVERN OF FONT-DE- 

 GAUME ON THE BEUNE ......... 179 



Reproduced by permission from Osborn's Men of the Old Stone A.I. . 



\ MAMMOTH DRAWN ON THE WALL OF THE FONT-DE-GAUME CAVERN . 179 



A GRAZING BISON, DBLICATELY AND CAREKULLY DRAWN, ENGRAVED 



ON A WAL_ OK THE ALTAMIRA CAVE, NORTHERN SPAIN . 179 



PHOTOGRAPH OF A MEDIAN SECTION THROUGH THE SHELL OF THE PEARLY 

 NAUTILUS .... 186 



