EXPLANATION OF THE PLATES. 
357 
PLATE XXIV. 
MORGAN’S PADDLE WHEEL AND SEAWARD’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.