Frederick Guthrie on Stationary Liquid Waves. 301 



Depth. 



Number of undulations per 1' in 



A. 



B. 



millims. 

 145 

 155 

 165 

 175 

 195 

 225 

 255 

 280 

 330 



63 

 65-5 



n" 



715 



71-6 



76 



78 



79 



80 



81 



82 



83 



83-5 



83 5 



§ 19. Effect of variation in diameter on the above experiments 

 with A (depth = 290 millims.). 



In 2' there were 143 waves. 

 „ 2' „ 143 „ 



„2' „ 143 „ 



Mean rate for A per 1' . . 71*5. 



The second and third 2' were consecutive, and accordingly 

 the wave-rate of sequence is independent of amplitude. 

 Experiments with B (depth = 290 millims.). 

 In 2' there were 167 waves. 

 „2' „ 167 „ 



Mean rate for B per 1' . . 83'5 

 Experiments with C (depth = 185 millims.). 

 In 2' there were 183 waves. 

 „ 2 „ 183 ,, 



Mean rate for C per 1' . . 91*5. 

 Experiments with E (depth = 870 millims.). 

 In 1' there were 103'5 waves. 

 „ 1' „ 103-5 M 



„ 1' „ 103-5 „ 



Mean rate for E per 1' . . 103-5. 

 Putting the results together — 





Diameter. 



Mean n. 



n Vrf. 



Depth. 



A 



595 

 595 

 456 

 366 

 300 



71 5 



71-6 



83-5 



915 



103-5 



173909 

 174153 



178206 

 1760-49 

 1789-62 



millim. 

 290 

 330 

 290 

 185 

 870 



A' 



B 



C 



E 





