Hooker, Dr. J.D., on fossil beech-leaves.
Hopkins, Mr., on axes of elevation oblique to foliation. —on origin of lines of elevation.
Hornblende-rock, fragments of, in gneiss.
Hornblende-schist, near M. Video.
Hornos, Los, section near.
Hornstone, dike of.
Horse, fossil tooth of.
Huafo island. —subsidence at.
Huantajaya, mines of.
Humboldt, on saline incrustations. —on foliations of gneiss. —on concretions in gneiss.