REFERENCES

G. F. Becker, Kant as a Natural Philosopher, American Journal of Science, vol. V (1898), pp. 97-112.

W. W. Bryant, A History of Astronomy.

Agnes M. Clerke, History of Astronomy during the Nineteenth Century.

Agnes M. Clerke, The Herschels and Modern Astronomy.

Sir William Herschel, Papers on the Construction of the Heavens (Philosophical Transactions, 1784, 1811, etc.).

A. R. Hinks, Astronomy (Home University Library).

E. W. Maunders, The Science of the Stars (The People's Books).