PRESENT DAY STATUS OF THE ART. 63 



3 inches, 6 inches, and 12 inches long, and recommended model experi- 

 ments as of much greater value than experiments with full-sized vessels.] 



Report of the British Association for the Advancement of Science, 1872. 

 Experiments on the Surface-friction Experienced by a Plane Moving 

 through Water. By W. Froude. 



[This is the first report on the classical experiments on surface- 

 friction made in the first model tank.] 



Report of the British Association for the Advancement of Science, 1874. Re- 

 port to the Lords Commissioners of the Admiralty on Experiments for the 

 Determination of the Frictional Resistance of Water on a Surface, under 

 various conditions, performed at Chelston Cross, under the Authority of 

 their Lordships. By William Froude. 



[This is the second report on surface-friction. It contains the well- 

 known table for planes up to 50 feet in length, and is illustrated by the 

 curves obtained in the experiments and by photographs of the calico and 

 sand surfaces.] 

 Griffiths, Robert. 



Propulsion of Bodies through Water. T. L N. A., vol. 17. 

 GuNN, T. M. 



Logarithmetic Speed-Power Diagram. T. S. N. A., 1912. 

 Hamilton, J. 



Speed and Form of Steamships Considered in Relation to Length of Voyage. 

 T. L N. A., vol. 24. 



Horse-power Absorbed by Skin-Friction and Wave-Making in Ships of Dif- 

 ferent Forms and Proportions Deduced from Progressive Trials. T. I. 

 N. A., vol. 40. 



Communications re this Paper. T. L N. A., vol. 41. 

 Hele-Shaw, H. S. 



Experiments on the Nature of Surface Resistance in Pipes and on Ships. 

 T._ L N. A., vol. 39. 



Investigation of the Nature of Surface Resistance of Water and Stream-Line 

 Motion under Certain Experimental Conditions. T. I. N. A., vol. 40. 



Distribution of Pressure Due to Flow Round Submerged Surfaces, with 

 Special Reference to Balanced Rudders. T. I. N. A., vol. 42. 

 Holmes, U. T. 



Influence of Depth of Water on Speed, Revolutions and Horse-Power. J. A. 

 S. N. E., 1910. 



Resistance and Speed of Submarines. J. A. S. N. E., 19 13. 



Hull Efficiency. J. A. S. N. E., 1914. 



HOVGAARD, W. 



An Analysis of the Resistance of Ships. T. I. N. A., vol. 50. 

 Diverging Waves. T. I. N. A., vol. 51. 



