Subject ASC0003xyo
The geologist : a popular monthly magazine of geology.
v.2 (1859), Page 142 (1859)
American Museum of Natural History Library
BHL Page 47679539
Keywords
Figure 2 : show the connexion and gradual passage from a level surface at a to low and round-topped ripples at b which at c and d become crested and sharp-topped. ripples Wave current ripple science ripple wave current