" the developmental stages of the clam, the rate of 

 " growth of the scallops, the causes of mortality of 

 "lobster fry, and tlie pathogenic bacteria infesting fish. 

 " With the co-operation of the Marine Biological 

 "Laboratory, it is proposed to make a series of syn- 

 " chronous observations on the temperature and floating 

 " fauna of Vineyard Sound. The combined vessels of 

 " the two laboratories provide a sufficiently large fleet 

 " to make these observations of special interest. It is 

 " also proposed to resume again the deep-sea work 

 " begun by the Commission many years ago, though the 

 " temporary use of the ' Fish Hawk ' by the United States 

 "navy will prevent the work from being undertaken 

 " the present season. 



Mr. Andrew Scott's work at the Piel Laboratory and 

 Hatchery has consisted in the hatching of young food fish 

 and lobsters, and certain experiments in their rearing, in 

 the examination of tow-nettings taken by the bailiffs along 

 the coast, and in carrying on observations for me in regard 

 to the conditions under which oysters and other shell-fish 

 become green. A little further on (p. 19) will be found 

 Mr. Scott's own report upon the hatching operations, but 

 I desire to make a few remarks here as to the conclusions 

 to be drawn from the experiments. 



In the first place, hatching must be carefully distin- 

 guished from rearing. So far as regards the hatching out of 

 a very large proportion of the ova supplied to the tanks, the 

 operations at Piel have been entirely successful. 



Out of about four million of healthy fertilised ova sup- 

 plied, a total of 3,319,000 larvae were hatched and set free 

 in suitable localities on the off-shore grounds. 



In the case of lobsters, the ova on 13 berried females 

 were, with almost no loss, retained in a healthy conditiiMi 



