[90] Bull. Soc. Vaud., Sc. Nat. 1906, 42, p. 225.
[91] Comptes rendus, 1905, 141, p. 567.
[92] National Antarctic Expedition 1901-1904, “Magnetic Observations.”
[93] The Norwegian Aurora Polaris Expedition 1902-1903, vol. i.
[94] (1) p. 163.
Note: The footnotes marked by an (*) could not be located in the text.
(C. Ch.)