TIDAL, POWER TUENBULL 



TURBINES 



535 



The best type of turbines to meet the constantly varying heads of 

 a tidal plant is open to a considerable amount of discussion, and it 

 is quite possible that special designs would be required to give really 

 the best results. However, I have carried out correspondence with 



several turbine manufacturers, and I am assured by them that tur- 

 bines can be supplied of present design and with high efficiency 

 that can satisfactorily meet the conditions given in the above com- 

 parative table. 



In correspondence with the I. P. Morris department, of William 

 Cramp & Sons, Philadelphia, they have recommended a high-speed 



