34 Fishery Board for Scotland. 



line our diagram must be taken to refer only approximately to the 

 meridian itself), we see a somewhat marked change. Part of this 

 change consists in a perceptible raising of the maximal temperatures 

 in summer : but the lowering of the winter minima is very much 

 more conspicuous and greatly affects the general appearance of our 

 diagram. It is precisely off the west coast of Ireland, that is to 



65 



60° 



55 - 



50" 



Fig. 28.— The same for 5" W. 



say, between about 52° and 55° N., that these lowered minima are 

 apparent, and cause a great departure from symmetry in our 

 chart. 



The diagram which refers, approximately, to 5° W. (Fig. 28) 

 (approximately, since that meridian passes to a great extent over land, 

 especially in the west of Scotland) has been built up from the 



