ANIMAL INDUSTRIES 273 



10. Santa Maria- Arroyo Grande Region 2. 



11. Martinez-Concord-Walnut Creek (San Ramon 

 Valley) Region 2. 



12. Northwestern Coast district Region 1. 



13. Northwestern Mountain district Region 5. 



14. Eastern Mountain district Region 5. 



It will be noted from the geography of California 

 poultry production,, as above set forth, that it has 

 extended from the coast regions into the interior 

 valleys. In this movement it has followed the prog- 

 ress of the dairy industry with this important differ- 

 ence, that in the latter, the greatest county and 

 regional dairy productions have departed from the 

 coast to the interior, and the poultry interest retains 

 both of these attainments near the coast, though 

 interior production has become large. The Petaluma 

 district, taking its name from a town in southern 

 Sonoma County, on the north shore of San Fran- 

 cisco Bay and connected with the city of San Fran- 

 cisco by both rail and water routes traversing about 

 forty miles of distance, became the leading poultry 

 region of California about 1880 and it has maintained 

 leadership not only in the amount of product but in 

 invention of methods and appliances, originality in 

 choice of materials and in systematic policies in pro- 

 duction, for about forty years. The town of Petaluma 

 is an emporium of trade in eggs. The immediate 

 region produces little poultry feed and train and 

 boat loads of grain, alfalfa hay and meal and by- 

 products of the meat industry are brought in. Peta- 

 luma is not only an egg but also a poultry factory, for 



