—, on hail storms, xxiii, 35.f
Jones, G., on the use of anthracite in blacksmith shops, xviii, 303.
—, remarks on prairies, xxxiii, 226.
—, Naval Sketches, citation from, xvi, 168, 320.f
—, excursion to Cairo, &c., xxxi, 412.
Jones, W. G., description of a new compensating pendulum, xxxviii, 274.f
Joslin, B. F., on the atmospheric origin of the Aurora, xxx, 390; xxxv, 145.
—, polarity of crystals indicated by rotation, while forming, as seen under solar microscope, xxxv, 150.
—, on the tails of Halley's comet, xxxi, 142, 324.
—, electro-magnetic apparatus, xxi, 86.f