CHEMICAL CHANGES OCCURRING IN OYSTERS. 
9 
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 
