Bur,. U. vS. B. F., 1908. 



Platk LXXIX. 



Fig. 5.— Spawntaking operations on the Detroit River, Michigan. Whitetish caught in commercial fishing are held 

 in crates and pounds until ripe. The crates are provided with false bottoms, which may be raised for easier access 

 to the fish. 



Fir,, 6. — Two men with dip nets are lifting fish from crates (male whitefish in one crate, females in another) into the 

 tubs at the spawntaker's right. The pan (if eggs is passed to the man at the extreme left, wlio " washes theni up" 

 before they are put into the neighboring tub for water hardening and removal to the hatcher^'. (Detroit River. 

 Michigan.} 



