[758] Id. II. 34, 84. Dr Robert Williams, in his work on Morbid Poisons (II. 670) argues for Webster’s electrical theory of influenza without knowing, or at least without saying, that it was Webster’s. The much-advertised writings of Mr John Parkin on The Volcanic Theory of Epidemics (or other title) follow Webster very closely both in the main idea and in its ramifications, but without acknowledgment to the American philosophe. Milton’s rule was that one might take from an old author if one improved upon him; but neither Williams nor Parkin has improved upon Webster.

[759] Ibid. II. 30.

[760] “Catalogue of Recorded Earthquakes from 1606 B.C. to A.D. 1850.” British Assocn. Reports, 1852-54.

[761] Abraham Mason, Phil. Trans. LII. Part 2, p. 477.

[762] Webster, I. 150.

[763] Hillary, Changes of the Air, etc., p. 82.

[764] Hillary, Changes of the Air, etc., p. 80.

[765] Webster, I. 250.

[766] Hamilton, Phil. Trans. LXXIII. 176.

[767] Mallet’s Catalogue, u. s.