… FH Brown Rosenblatt Fund), to all of which we are grateful. In addition, we thank the many
students who have participated in sample collection, preparation, and curation over the years. …

In 1967 the Kibish Formation in southern Ethiopia yielded hominid cranial remains identified
as early anatomically modern humans, assigned to Homo sapiens 1 , 2 , 3 , 4 . However, …

The Akkadian empire ruled Mesopotamia from the headwaters of the Tigris-Euphrates Rivers
to the Persian Gulf during the late third millennium BC Archeological evidence has shown …

… Brown (1985) and Brown et al. (1985a1, and a formal subdivision of strata there has been
made by Harris, Brown … Turkana has been recently revised by Brown and Feibel (19861, who …

… It is overlain by a volcanic pebble conglomerate, followed by a pale brown quartz-rich fine
… Overlying the dark mudstone at the hominin site is a brown mudstone (8 m) that directly …

Many important hominid-bearing fossil localities in East Africa are in regions that are extremely
hot and dry. Although humans are well adapted to such conditions, it has been inferred …

Specimens of Australopithecus boisei have been found in 2.5-Myr-old sediments west of
Lake Turkana, Kenya. The primitive morphology of these early A. boisei suggests that robust …

… It was ex situ, coated in carbonate matrix, on the brown mudstone and sandstone sequences
between the Lower Ileret Tuff and the Chari Tuff. Assuming constant sedimentation rates …

The phase relationships in the zirconia-yttria system have been established up to 2000~ The
addition of 0 to 5 mole per cent yttria lowers the temperature at which zirconia transforms …

The minimum amount of calcia or magnesia required to stabilize zirconia into the cubic form
is about 16 mole %. X‐ray diffraction studies show that both calcia and magnesia are in …