240 WIEDEMANN ON THE MOTION OF LIQUIDS 



intensities were next experimented with. The following tables 

 show the results thus obtained. Beside the intensity i, is placed 

 the corresponding quantity of water m, in grammes, which 

 passed in equal times (a quarter of an hour) through the tube e 

 into the vessel z. 



I. Distilled Water. 



t. m. -r- 



144 17*77 grms. 1-23 



108 13-26 „ 1-23 



: 83 10-59 „ 1*27 



60 7*46 „ 1-24 



48 5-89 „ 1-23 



36 4-47 » 1-24 



29 3-38 „ 1-17 



Mean . . . 1-23 



By employing another cylinder the following numbers were 

 obtained : — 



». 

 110 

 91 

 82 

 50 



37 

 30 

 23 



Mean . . .1-60 



II. Solution of Sulphate of Copper (20 parts Cu S + 5 aq to 



100 parts of solution). 



m 

 ». m. -J' 



148 3-30 grms. 2-23 



138 3-01 „ 2-18 



118 2-48 „ 2-10 



64-5 1-36 „ 211 



Mean . . . 2-16 



