REPORT OF COMMISSIONERS OF INLAND FISHERIES. 135 



hatched lobster fry are of equal value for maintaining the species, the 

 ratio of individual values would be 200 : 1. Our method of artificial 

 culture is capable of obtaining 8,000 fourth-stage lobsters from 20,000 

 fry. It is able, therefore, by taking advantage of the lobster's great 

 productivity, to obtain 80 times as many young of this particular ad- 

 vanced stage as are necessary for the maintenance of the species under 

 natural conditions. 



