Smithsonian Report, 1894 



PLATE VII. 



SERIES V. 



The Splash of a Drop, followed in Detail by instantaneous Illumination. 



The size of drop and height of fall are the same as before, but tlie hollow shell (see figs. 4 and .j of 

 the previous series) does not succeed in opeuiiiK. but is left as a bubble ou the surface. This explains 

 the formation of bubbles when big raindrops fall into a pool of water. 



