418 



THE HERRING FAMILY. 



another respect :— their average size upon hatching is appreci- 

 ably less, a result which could have been prognosticated, when 

 the higher mean temperature in August compared with that m 



O B) O c,-' O 



A|3ril is considered. (See Rate of Grotuth.) The autumn- 

 brood, like the spring, eventually reach the shallower water 

 and are found in great numbers (whitebait) in the estuaries of 

 rivers. These whitebait, when kept in confinement, swim in 



