LIST OF PLATES 



How tho sun warms the earth (Abbot) : Page 



Plates 1-6 180 



Gravitation (Brown) : 



Plates l-l 188 



Interstellar space (Abbot) : 



Plates 1-3 218 



High voltage (Compton) : 



Plate 1 2G6 



Battle of the alchemists (Compton) : 



Plates 1-3 282 



Meteorite craters (Spencer) : 



Plates 1-5 326 



Geolo.uist's paradise (Bassler) : 



Plates 1-4 332 



Ultraviolet light (Meier) : 



Plate 1 360 



Ticks (Bishop) : 



Plates 1-9 406 



Tepe Gawra (Speiser) : 



Plates 1-6 428 



Indian manuscripts (Spinden) : 



Plates 1-3 452 



Bering Sea archeology (Collins) : 



Plates 1-11 468 



VII 



