Geology.

• “On Volcanic Action regarded as due to the Retardation of the Earth's Rotation,” by J. Carruthers, C.E. (See Transactions, page 352.)

• “On the Igneous Rocks of Wellington,” by J. C. Crawford, F.G.S. (See Transactions, page 375.)

• “On the Probability of finding Coal in the Province of Wellington,” by J. C. Crawford, F.G.S. (See Transactions, page 379.)

• “On the old Lake System of New Zealand,” with observations as to the formation of the Canterbury Plains,” by J. C. Crawford, F.G.S. (See Transactions, page 369.)

• “Further remarks on the Igneous Rocks of Wellington,” by J. C. Crawford, F.G.S. (See Transactions, page 376.)