ES's paper on magnetic observatories in colonies is same as 'Introduction' to vol. 3 of Toronto observations. Publisher has delayed [Elizabeth J. Sabine's] translation of vol. 4 of Cosmos; please send JH's copy of 'Editor's Notes' to other members of magnetic committee. J. B. Biot intentionally subordinated English pendulum experiments to French experiments, and Alexander von Humboldt was misled.