120 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Manx Summer-caught Herrings (Fresh). 
Water 
Water. Fat. + Fat. Nitrogen. 
July er Ah 40:2 38°6 78°8 14°8 
Avioust) ties. ON aes 36:6 80°1 14:7 
September oes 49-2 27°6 (ie. 14°3 
June Lae Pit, 55°3 22°] 17-4 14°6 
Manyara et ele’ G emaass 3:2 74-0 141 
Means ... a 51°8 25°6 77°4 14°5 
Pickled (probably all) Summer-caught Herrings. 
Means ... aoe 47°7 20°9 67°6 14:2 
Hermetically-sealed, matured Herrings in various media. 
Means ... eis 62°9 12°8 79°7 14°8 
Hermetically-sealed, unmatured Herrings. 
Means ... se 63°6 12-2 75'8 15:2, 
Smoked Herrings and Sprats. 
Means ... ane 45°] TTF 62°8 15°1 
Hermetically-sealed, unmatured Sprats, in oil. : 
Means. (i. 21583 15°7 74:0 15°] 
Hermetically-sealed, matured Pilchards in various media. 
Means ... a 58°2 10°8 69°0 15°6 
Fresh Wuinter-caught Herrings. 
Means ... ae 62°4 247 84°] 15°6 
Fresh Winter-caught Sprats. 
> 20/9, Bata... 60°1 2S 82°4 15°9 
15-20 % A am 63°3 17'8 81°] 16°2 
10-15 % bo 9 68°8 12°4 81-2 ' 15:9 
5-10 % gations 73°3 70 80°3 16°2 
0-5 % Rivas Ja 79°6 aL 82°7 16°6 
Means ... med 69:0 eel 81°5 16:2 
These statements seem to pot the way to lines of further 
investigation as to the rationale of methods of fish conservation. 
The results are set out roughly in order of magnitude of the 
percentage of nitrogen in the residue which we may take to 
be “ proteid’ in nature and this percentage is so stated as to 
be unafiected by the variable quantities of salt that are added 
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