CHEMICAL CHANGES OCCURRING IN OYSTERS. 



SERIES IV. 



In this and the following series, determinations for total solids, ash, 

 moisture, and salinity were made, in addition to those for ammoniacal 

 and amino-acid nitrogen, as those were found to be the most satis- 

 factory determinations for showing the effects of commercial washing 

 processes. These determinations were run upon oysters in all the 

 various stages of preparation in several oysterhouses. The results 

 are shown in Table 4. 



77345°— 19— Bull. 740 2 



