Vol. 251, Issue 4, 1953

Science Paper
Diversion of Lava Flows at O Shima, Japan
Arnold C. MasonHelen L. Foster
Discusses the 1951 eruption of the O Shima volcano, Japan, with special reference to the diversion of lava streams by a concrete building situated on the rim of the crater...
Science Paper
The Parry Islands Folded Belt in the Canadian Arctic Archipelago [Northwest Territories]
Yves Oscar FortierRaymond Thorsteinsson
...
Science Paper
Geomorphologic Observations at Thule, Greenland and Resolute Bay, Cornwallis Island, N. W. T
Robert Leslie Nichols
...
Science Paper
Nature and Dynamic Interpretation of Deformation Lamellae in Calcite of Three Marbles
Francis John Turner
...
Science Paper
A Note on the Stability of Jadeite
Leason Heberling Adams
...
Science Paper
The Preorbital Fossa of Hipparion
P. L. Pirlot
Briefly discusses the position, morphology, and significance of the preorbital fossa of Hipparion and other fossil horses.