146 ANIMAL BIOLOGY 



to thirty-five pounds, depending on the locality. The aver 

 age weight of small cod is twelve pounds. Jordan and Ever 

 mann state that cod weighing 75 pounds are not. common 



FIG. 109. The shad. (Goode.) 



but that one was caught off the New England coast that 

 weighed 21 1J pounds. 



Codfish are marketed fresh, pickled, salted, and dried, 

 Oil and isinglass are also obtained from the cod. 



FIG. 110. The herring. (Jordan and Evermann. Courtesy -of Doubleday, 



Page & Co.) 



109. Library study of other fishes. (Optional.) 

 Consult Jordan and Evermann's " American Food and Game 

 Fishes," Hornaday's " American Natural History," and special 

 articles in Cyclopedias or other reference books, on one or more of 

 the following fishes : mackerel (Fig. 95), sardine, shad (Fig. 109), 

 herring (Fig. 110), white fish, smelt, bluefish, halibut, menhaden,, 

 Write in your notebook an account of the fishes selected for study 

 using the following topics as a guide : 



