BuL. U. vS. B. F., 1908. 



Plate LXXXVI. 



Fig. rg. 



-Main rack across Battle Creek near the Battle Creek station. California, 

 facilitate disposal of leaves and other debris. 



L"l)l)er sections of rack raisL'd to 



Fig. 20. — Seining .^pawning salmun uu the McCloud River, California, at the Baird station. 



replaced the hand windlass. 



Steam power has now 



