EXPLANATION OF THE PLATES. 357 



PLATE XXIV. 



MORGAN'S PADDLE WHEEL AND SEA WARD'S PADDLE WHEEL. 



This plate relates to Mr. Barlow's paper on " Paddle wheels " given in the Appen- 

 dix, page 40, and a description of the drawings is to be found at pages 41 and 42. 



PLATE XXV. 



POSITIONS OF A FLOAT OF A RADIATING PADDLE WHEEL, AND ALSO OF A 

 VERTICALLY ACTING WHEEL, IN A VESSEL IN MOTION. 



This plate relates to Mr. Barlow's paper on paddle wheels, and is described by 

 him at pages 45 and 49 of the Appendix. 



PLATE XXVI. 



CYCLOIDAL PADDLE WHEEL FITTED TO THE "GREAT WESTERN" STEAM 

 VESSEL, WITH ANOTHER DRAWING REPRESENTING THE POSITIONS OF 

 ONE OF THE FLOATS. 



This plate likewise relates to Mr. Barlow's valuable paper in the Appendix, where 

 it is described by him at page 53. 



