The riddle of the earth
xiv, 251 pages frontispiece, illustrations (maps) plates 23 cm
1517479
The weather and earthquakes
Volcanic activity in the North
Volcanic systems
Volcanic eruptions and their lessons
The creation of volcanic craters
The functions of a volcano
Volcanic dependence upon meteors
Comets and their gases
The mission of a comet
The mystery of the drift
Where the comet fell
Printed in Great Britain