Mr. J. R. Napieu on Velocity ofSfnps. 



353 



The curves on the accompanying sheet are drawn for different values 

 of n from the formula v = n V A to facilitate the formation of scales. 



The working of the instrument on board the Fiery Cross, a screw 

 steamer of about 1100 tons, on a recent voyage from the Clyde to Car- 

 diff is shown in the following abstract from her log : — 



FIERY CROSS— FROM THE CLYDE TO CARDIFF. 



