CHAPTER VII. 



BIRTH, GROWTH AND REPRODUCTION OF OYSTERS 



ON THE COAST GREASE SPOTS FLOATING ON THE SEA THEIR 

 EXAMINATION BY THE MICROSCOPE THE INFANT OYSTER AND 

 ITS FIRST NUTRIMENT ITS ATTACHMENT TO THE ROCK THE 

 BYSSUS OF THE MUSSEL OPINIONS RELATIVE TO THE MODE 

 OF REPRODUCTION NUMBER OF YOUNG IN AN OYSTER THE 

 MATURITY OF THE "SPAT" APPLICATION OF THE TERM 

 "FALL" OF SPAT THE PROCESS OF SPATTING ACTIVITY OF 

 LARVAL OYSTERS RATE OF GROWTH NATURAL TERM OF THE 

 OYSTER'S LIFE AT WHAT AGE IT ATTAINS ITS MAXIMUM 

 PRODUCTIVITY ITS EXTRAORDINARY ALTERNATION OF SEXES 

 CONTROVERSIES ABOUT OYSTER-LIFE WHEN DO OYSTERS 



BECOME REPRODUCTIVE FOR DREDGING WHY THE BALTIC IS 

 DEVOID OF OYSTERS WHITSTABLE AND THANET COCKENZIE 

 OYSTERS LARGE SHELLS AND LITTLE MEAT TEMPERATURE 

 NECESSARY FOR THE CULTIVATION OF OYSTERS MISCELLA- 

 NEOUS FACTS LIST OF THE GENUS OSTREA. 



IT is a morning in spring. Let us hasten together to the 

 sea-shore, and inhale the healthy breeze which is being 

 wafted over the waters. 



Going close to their edge, we may discover patches of 

 small bubbles, as of oil, or grease, floating on their sur- 

 face. The sight is not unusual at certain periods, for such 



D 



