130 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



These specimens are fairly representative of the late of growth of 

 oysters in the coves along the Chesapeake, where the growth and mul- 

 tiplication of microscopic organisms is greatly favored. The growth 

 of spat in more saline waters than those found in the best coves of the 

 Chesapeake does not seem to be so rapid, but the number of individual 



Fig. l. 



Fig. 2. 

 Figures illustrating the rat.- of grouth of oysters in Saint Jerome's Creek. 



