No. 2 in **E.191.6 Herschel, Sir John Frederick William, bart. On circulation functions, and on the integration of
a class of equations of finite differences into
which they enter as coefficients.
Lond. Bulmer. 1818. (2), 25 pp. 4°.
From the Philosophical trans. of the Royal soc.
of Lond. 1818. (| *#*E.172.1. 1818. Pt. 1).
- Functions. -Calcu ee lus. Integral.-Finite
Differences.