This is a history of the theory of gravity from Aristotle to Newton. It is the thesis of this essay that the history of the feelings about gravity contains a message about the changes in attitudes toward nature that occurred in European cultures in th . . .

A theory of periglacial gnamma development in Chile, Minnesota, and Portugal claims that the maximum depth of gnammas (h) divided by the maximum depth of water which can be held by the gnammas (u) can be used to identify numerous periods of gnamma ini . . .

Remnant sea stacks on an uplifted, Pleistocene, wave cut terrace, on the north coast of Sonoma County, north of San Francisco California, have localized mirror-like polish on their surfaces which extends over areas up to 4 meters high. Scanning electr . . .

A Distinctive Glass Clast Population In numerous locations in Sonoma and Solano Counties in north central California, over an area of ~ 200 km2, distinctive ~ 1-5 cm dominantly ovoid glass clasts are found as part of the pebble population in young sed . . .