His Encyclopaedia article, "Probability," was published separately.
There is much material in the Encyclopaedia of Mississippi History (2 vols., Madison, Wisconsin, 1907), edited by Dunbar Rowland.
A brief history of the bishopric is given in the Catholic Encyclopaedia (London and New York, 1909), with bibliography.
The treatises on physical geography by Mrs Mary Somerville and Sir John Herschel (the lattewritten for the eighth edition of the Encyclopaedia Britannica) showed the effect produced in Great Britain by the stimulus of Humboldt's work.
On particular authors and subjects there are many excellent monographs in the Jewish Encyclopaedia (New York, 1901-6), to which the present article is much indebted.
