The Differential Equations of Fresnel's Polarisation-Vector, with an Extension to the Case of Active Media J. Walker
On the Abelian System of Differential Equations, and Their Rational and Integral Algebraic Integrals, with a Discussion of the Periodicity of Abelian Functions. W. R. W. Roberts
Differential equations of the equilibrium states of thin elastic shells in the postcritical stage N. A Alumyae
On a Class of Differential Equations, Including Those Which Occur in Dynamical Problems. Part II W. Donkin