TO face page 126. 



FIG. 34. The Water Meter. The large cans in which the water collects are here shown, 

 together with method of attachment to balance-arm and lead counterpoises just behind 

 them. Above the cans may be seen the dials on which the weight is indicated, and 

 below them the device for shifting from one can to the other. The various electrical 

 connections are also shown. 



