BATTERIES 



The following is an extract from the makers' pamphlet ; 



It follows from the above that : 



The Leclanche and the Mallory type cells should be regarded as comple- 

 mentary. Where very small size and volume are of critical importance the 

 latter have obvious advantages. Similarly when small size and volume are 

 not a first consideration the Leclanche dry cells are more suitable and more 

 economic. A comparison of cost in terms of pence per Wh is given in the 

 table below : 



These figures show that, output for output, the dry Leclanche cell is a 

 good deal cheaper. 



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