experiments , the speed of the return flow should be measured and related to 

 the breaking wave properties . 



189. Commonly accepted formulae for runup and wave reflection did not 

 well describe the data generated in this study. Further work is needed to 

 investigate more fully these quantities. 



190. A next logical step in this experiment program would be to empha- 

 size irregular wave breaking. The video technique relied upon extensively in 

 the present study will probably be relegated to providing supplementary quali- 

 tative information, with quantitative data requirements necessitating a dense 

 array of wave gages or other, more automated measurement procedures. 



148 



