Fig. 103.— Floaiing Index showing Method 

 itf Reading 



A Point at which reading is taken 



u I-cvel nf liquid 



C Stem <jf hydromtrler 



Fifi. ItM.— Cross Section of Floating Index 



o Point at which reading i<^ takrn 

 /• Level nf liquid 



Fin. 102,- Complete In»trumcni in ii»»e 



A NbW and MoKK ACCt'RATK Form of IIVDROMICTBtt 



