218 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



to the time of spawning can thus be ascertained. At the 

 beginning of the series of analyses the herrings were mostly 

 ripening fish in the condition denoted by Hjort's Nos. II and 

 III in his scale of ripeness. At the end of the analyses the 

 herrings were mostly spent fish. 



Table I. Manx Herrings (Mature). 









Weight of 











Date. 



Sex, &c. 



muscle 



Dry 



Weight of 



Percentage 



Percentage 









substance. 



weight. 



oil. 



of oil. 



of water. 



1914 

















June 3 



Unripe 



cJ 



7-195 





0-383 



5-3 





,, 



,, 



9 



4-790 





0173 



3-6 





June 25 



Unripe 



c? 



7-225 





2-008 



27-8 





,, 



,, 



9 



8-264 





2-205 



26-8 





July 2 



Unripe 



c? 



7-793 



3-309 



1-901 



24-4 



57-5 



,, 



j 



9 



6-383 





1-882 



29-5 





July 9 



Unripe 



c? 



5-737 



2-958 



1-863 



32-5 



48-4 



55 



„ 



9 



6-688 



3-644 



2-339 



34-9 



46-6 



July 31 



Full 



r? 



6-140 



2-380 



1-038 



16-9 



61-2 



,, 



,, 



9 



3-577 



1-979 



0-950 



26-5 



42-3 



Aug. 22 



Full 



r? 



5-258 



2-442 



1-246 



23-7 



53-5 





5> 



9 



5-453 



2-162 



0-964 



17-6 



62-3 



Sept. 4 



Spawning $ 



4-869 



1-782 



0-791 



16-3 



63-4 



,, 



,, 



9 



4-972 



1-980 



0-902 



181 



60-2 



Sept. 30 



Spent 



c? 



5-669 



2 043 



0-512 



9-0 • 



63-9 



" 



" . 



9 



5-635 



1-897 



0-503 



8-9 



66-3 



Table II. Welsh Herrings (Mature). 









Weight of 











Date. 



Sex, &c. 



muscle 



Dry 



Weight of 



Percentage 



Percentage 





- 





substance. 



weight. 



oil. 



of oil. 



of water. 



1914 

















Oct. 27 



Full 



J 



4-846 



1 755 



0-901 



18-6 



63-8 







9 



6175 



1-904 



0-698 



11-3 



69-1 



Nov. 19 



Full 



$ 



4-823 



1-911 



1-086 



22-5 



60-4 







9 



6-399 



1-993 



0-758 



11-8 



68-9 



Nov. 20 



Full 



rf 



5-506 j 



2015 



1054 



19-1 



63-4 







9 



5-394 



1-886 



0-891 



16-5 



650 



Dec. 9 



Full 



c? 



5-472 



1-978 



1-019 



18-6 



63-8 







9 



3-946 



1-186 



0-462 



11-7 



69-9 



Dec. 18 



Virgin 



$ 



4-038 



1-252 



0-416 



10-3 



68-9 



,, 



Spent 



9 



4-517 



1-296 



0-349 



7-7 



71-3 



1913 







1 











Dec. 10 



c? 





2-866 





0117 



41 







Full cJ 





2-887 





0-255 



8-8 







S 





4-485 





0-556 



1-2 





Dec. 19 



Spent 



9 



4-580 





0-127 - 



2-8 





" 



" 



9 



3-594 j 





0-313 



8-7 





