Sea-fisheries laboratory. 



'227 



others change regularly by 1° C, as indicated in the 

 margin. The latter values have to be added or subtracted. 

 One is guided, in drawing the smooth curve, by the way 

 in which the adjacent ones run, and by using some 

 judgment, and having regard to what one knows of the 



GtOrme'sHd, -I 

 Red Wharf Bay, O 

 Pt.Lynas, +1 

 Middle Mouse., f£ 



CarmQl Hd. , + 3 

 South Stack, +^- 



Jan. ' Feb. 'Mar ' Apt 'May 'June July Aug! Sept Oct 1 Nov.' Dec ' 



Fig. 24. Surface temperatures at various inshore stations in 1909. 



physical conditions obtaining at each station. We see at 

 once that a good deal of confidence can be placed in these 

 curves, and that we may interpolate from them with a 

 reasonable expectation of accuracy. Such curves have 

 been made for all the coastal stations, and in drawing the 



