ON GRAPHIC METHODS IN MECHANICAL SCIENCE. 

 Fig. 27.— Weight of Water in Pounds. 



399 



^ TO /S ZO ZS 30 3S -M 4S SO S5 60 es 70 



lisWouter. 



Fig. 28. — Time in Minutes. 



soo eoo 700 800 soo woo noo tzoo uoc t-foo rsoo tooo itoo fsoo 



