50 



TKANSAOTIUJS'S LIVERPOOL BIOLOGICAL SOCIETY. 



regulated and cultivated waters of North America, both 

 inland and marine, may prove to be more productive even 

 than the great wheat lands of Manitoba. 



Inland waters may be put to many uses; sometimes 

 they are utilised as sewage outlets for great cities, 

 sometimes they are converted into commercial highways, 

 or they may become restricted because of the reclamation 

 of fertile bottom lands. All these may be good and 

 necessary developments, or any one of them may be 

 obviously best under the circumstances, but due regard 

 should alwa} T s be paid to the importance and promise of 

 natural waters as a perpetual source of cheap and health- 

 ful food to the people of the country. 



JAi 



h 11 /! 



V. PER. 



12SII 8 15 22 



MAR. 



29 7 1U212S 



APR. 

 U 11 1825 2 



MAY 



9 1623 



to 



JUNE. 



613 2027] 



JULY. 



4 11 /8Z5, 



i 



AUG. SFPT 



ZIS22Z95 1ZI9Z& 



OCT. 

 3 to 17 US 1 



/VOK 



7 11,212$ 



? 



12192631 



a 

























































































eu 

















































































- 









6$ 













































































62 



















































































61 

























































































60 







































r 



















































m 

























































































S8 









































l > 

















































57 































A 







I 





• 









\. 















£ 



























56 































^ 







/ 









' 









•■ 













: 

























55 

































• 





/ 







• 













• 





'.' 



3 







X 























54 























L 







/ 





^ 





















\ 













1 























fa 53 























: 







1 







V 





















' 

















• 

















«S2 























r 



• 



J 









































1 





















%& 























t 



L 











































U 



- 



















\st 

























































































-»*« 









































































\ 

















?** - 













































































■ 













a w 











































































'. 















3«6 























I'.- 



























































1 







* 



?45 ^ 





. 



















l 





























































V 







^1A ' S " 



: a ** 



f\ 



















} 































































- 





A3 



















, 



, 





































































« 



\^ 



















' 





































































kt 



"V 





r 



■ 





t 













































































M _j 







1 - 







i 













































































39 \ 







5 





i 















































































38 7. 



37 L 























WEEKLY AVERAGE TEMPERATURE OF 

 THE AIR AND SEA AT 9' M AT PORT 

 ERIN.DURINC THE YEAR 1908 



- 

































36 























































35 j " 























































1 R 

























































































33 

























































































42 

























































































The above curves show the result of the temperature observations 

 taken at the Biological Station during 1908, the last complete year. 

 They show very clearly how the temperature of the sea (dotted) lags 

 behind that of the air (whole lines), being higher in winter and lower 

 in the height of summer. 



