338 



KEPORT 1844. 



Column C gives the derived velocity of the wave. 



Column D gives the characteristic number of tlie individual wave as ob- 

 served (see former Report). 



These results are compared with my formula in Plate XLIX. 



Table IX. 



Velocity/ due to a Wave of the First Ordei; 

 Obtained from the re-discussion of the experiments as described above. 



Column A gives the depth in inches reckoned from the wave crest. 



Column B gives the observed time of describing 40 feet, * the observations 

 thus marked being over half that space. 



Column C gives the observed velocity. 



Column D is a reference to the ordinal number of the wave observed. 



The close approximation of these velocities of observation with the num- 

 bers of the formula, proves at once the accuracy of the one and the truth oC 

 the other. 



