1 92 Fart III. — Sixteenth Annual Report 



Table X. — continued. 





































Number of Records for each Month of each Year. 





Outer Stations — 



Years. 



























Totals for the ^ 

 and Stations 



continued. 



Jan. 



Feb. 





April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 





1889, . 



2 







- 



- 



2 



2 





- 



- 



1 



- 



8 





1890, 





1 



1 



1 



1 



- 



1 





1 



2 



- 



1 



9 





1891, . 





2 





2 



1 



- 



1 



1 



1 



2 



2 



- 



12 



VIII. 



1892, . 



2 



2 



2 



2 



2 



2 



1 





2 



1 



- 



4 



20 





1893, . 



2 



2 



- 





2 



1 



1 





1 



1 



- 



2 



13 





1894, 



1 



2 



- 



1 



















4 





1890, . 





2 



- 



1 



2 



- 



- 





1 



2 



- 



2 



11 



Totals for the Months, . 





3 



7 



8 



5 



6 





6 





3 



9 



77 





1889, . 













2 



1 









1 









1890, . 





1 



2 



1 



2 





2 





2 



1 







13 





18!)1, . 





2 





2 



1 



2 



1 





1 



2 



2 





14 



IX. 



1892, . 



2 



1 



2 



1 



1 



1 



1 





1 



1 







14 





1893, . 



2 



2 







2 



1 



2 





_ 



2 





2 



14 





1894, . 





2 









1 







- 









4 





1895, . 





2 





1 









2 



1 







2 



8 



Totals for the Months, 





6 



10 



4 



5 



6 



7 





6 





6 



3 



9 



74 



This Table shows that the total number of records of Sagitta for the six 

 selected stations, and for the seven years, is four hundred and five, being 

 somewhat fewer than the number of records of Calanus, but considerably 

 in excess of the number of records of any other of tlie species that have 

 been referred to. In making an analysis of the Table, it is found that 

 while there is a considerable difference between the number of records for 

 Station lY. and that for Station A^III., if the three inner stations and 

 the three outer stations be considered separately, the difference in the 

 numbers of each group is much less. These points will be made more 

 evident by arranging the stations and the number of records for each as a 

 formula, thus : — 



Formula (1) shows the number of records of Sagitta for each of the 

 six selected stations : — 



The Three Inner The Three Outer 



Stations. Stations. 

 Numbers of Stations, - ... I. HI. iv. V. VIII. IX. 

 Number of Records for each Station, - 66 58 56 74 77 74 



The numbers for the three outer stations are nearly equal, but Station I. 

 in the other three shows a greater divergence. It may also be noticed that 

 Station I. and Station VIII., that have the highest number of records in 

 each of thb two groups, are intermediate stations — that is. Station I. is 

 situated between Stations III. and IV., and Station VIII. between 

 Stations V. and TX. Moreover, if a comparison be made of the total 



