w^ -■ 







117 



COUNTLESS RUGGED ISLANDS and islets dot the Gulf of Cali- 

 fornia and rise in formidable spires from the depths of the in- 

 land sea. Most of the islands afford ideal nesting grounds for 

 millions of marine birds. The six hundred mile length of the 

 turquoise gulf has not been fully explored. Zoologists and bot- 

 anists find it a fertile field for investigation. 



