OF MAKINE COASTS. 



MONTEREY BAY. 



in its inner i:iai-t, is lined with a chain of liigh dunes, which sometimes 

 extend for 1 km. or more. The beach is similar to that south of 

 Golden Gate, but no distinct littoral dune is formed, the dune-complex 

 commencing immediately after the upper beach. Inside of the dune 

 belt usually follow sand fields. 



The Hopkins Laboratory is situated on a rocky point at Pacific 

 Grove, and only small patches of narrow sand beach occur between the 



Fig. 10. Dunes covered with a Lupinus community, at Seventeen Mile Drive, Pacific 



Grove, Cal. 



PHOTOGIUPII BY THE ADTHOE. 



bluffs and the ocean in the immediate neighborhood. One kilometer 

 south of the laboratorj^, at Point Pinos (Fig. 9), sand formations of 

 greater extent again commence. The beach is gravelly or even consist- 

 ing of shingle for a distance until Moss Beach, where it is sandy. 



The recent drift sand has accumulated into small dunes some dis- 

 tance from the shore (Pig. 10), leaving a belt of older consolidated sand 

 bare or covered with a dense carpet of various plants. Further inland 

 the dunes grow in size and finallj', about 0.5 km. from the ocean, they 

 reach quite a considerable height. One of these dunes is about 90 m. 

 in height, sloping abruptly on its leeward side to the plain beliind. 



