EASTERN OYSTERS. 29 



mines ceased to be worked, and the miners paid 

 more attention to getting gold directly from the 

 rocks. And so the gravel banks are waiting for 

 some process which will allow men to secure the 

 gold without washing away the country also. 



THE GOLDEN GATE. 



When the muddy water of the rivers reaches 

 the bay, it meets the sea-water coming in from 

 the ocean, through the Golden Gate. This must 

 happen twice a day, when the tide is rising, and 

 at such times the flow of the rivers is stopped. 



