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made in an extremely ingenious way. 

 The lead was first stripped off, and the 

 insulation removed over a distance suffi- 

 cient for making the joint; when that 

 had been done the insulation was re- 

 placed, a plate of lead was put over it, 

 and a tool like a pair of nippers took it 

 round and squeezed it into the shape 

 shown, making a very strong joint. The 

 connections were made in the boxes, 

 which were of three different types. 

 Among the exhibits was one of Mr. 

 Lowrie's meters, containing a secondary 

 battery in series, with a set of copper 

 depositing plates and the consumers' 

 main leads. It did not measure currents, 

 but conductivity-hours. If the lamps 

 were switched on, but no alternate cur- 

 rent was sent through, and the circuit 

 was simply completed, the meter regis- 

 tered conductivity-hours ; but as the 

 pressure was always on the mains, that 

 was equivalent to registering energy. It 

 had been in use for two years with good 

 results. There was also an ampere 

 meter for alternate currents. The cur- 



