OFFICIAL INSPECTIONS 55. 



151 



of water and the smallest amount of dry matter. The liquids 

 in both of the North Haven clams carried 2.70 per cent of 

 common salt, or the same as sea water, which indicated that 

 the shell content was thoroughly in contact with the ocean. In 

 the case of the Keag River clams they carried 2.55 per cent of 

 common salt, showing that the waters were brackish. 



These clams were shipped directly to the laboratory and 

 each lot was opened in three different ways. Twelve clams 

 were used in each sample and they were selected so that the 

 total weights of the 12 clams were practically the same in all 

 three lots from the same source. The North Haven "Mud'" 

 clams were the largest and the Keag River clams were the 

 smallest in the lot. One lot of each was opened raw, another 

 lot was dipped for two minutes in hot salt water then immedi- 

 ately taken out and opened ; the third lot was dipped in hot 

 fresh water and after two minutes was removed and opened. 

 It will be noted from the table that the highest percentages of 

 dry solids in the clams was obtained from those that were 

 opened raw. In general the dry solids of clams were slightly 

 lower in hot salt water than when opened raw, and considerably 

 lower when dipped in hot fresh water than in tlie case of either 

 of the others. The Keag River clams which were opened in 

 hot salt water carried 20.7 per cent of dr}^ solids of clams. 

 When allowed to soak over night in salt water the solids fell in 

 the clams to 15.3 per cent. 



Liquids and dry matter of clams opened ran.' compared zvith 

 clams dipped for tivo minutes in boiling salt water and boil- 

 ing fresh zvater before opening. 







Opened Raw. 



Dipped in Hot 

 Salt Water. 



Dipped 

 Fbesh 



IN Hot 

 Water. 





Source op Claims. 















a 





i3 



oS 

 m a 



Qo 



"B 



3 



Dry solid 

 of clams. 



'2 

 ■3 



■3 



•a ^• 

 ■•3S 



Qo 







% 



% 



% 



% 



% 



% 



11079|North Haven "Rock" 



53.2 



21.2 



58.1 



19.8 



59.2 



19.7 



llOSOjNorth Haven "Mud" 



46.7 



19.8 



45.8 



19.2 



50.8 



18.6 



11081 



Keag River 



40.9 



22.4 



40.2 



20.7 



54.0 



20.4 



