Observations on the 21st and 22nd of March, June[,] September and December, are made by the South African Literary and Philosophical Institution, the Royal Society of London, the Albany Institute, John S. M'Cord, Esq. of Montreal, and Professor [Benjamin F.] Joslin of Union College, Schenectady. Includes account of instruments used and procedures followed in making the observations. Signed in type by M. H. Webster and Philip Ten Eyck of the committee on meteorology.