142. Different methods of treating spherical harmonics
143. On the diagrams of spherical harmonics. (Figs. V, VI, VII, VIII, IX)
144. If the potential is constant throughout any finite portion of space it is so throughout the whole region continuous with it within which Laplace's equation is satisfied
145. To analyse a spherical harmonic into a system of conjugate harmonics by means of a finite number of measurements at selected points of the sphere
146. Application to spherical and nearly spherical conductors
Chapter X.
Confocal Surfaces of the Second Degree.
147. The lines of intersection of two systems and their intercepts by the third system
148. The characteristic equation of in terms of ellipsoidal coordinates
149. Expression of , , in terms of elliptic functions
150. Particular solutions of electrical distribution on the confocal surfaces and their limiting forms
151. Continuous transformation into a figure of revolution about the axis of
152. Transformation into a figure of revolution about the axis of
153. Transformation into a system of cones and spheres
154. Confocal paraboloids
Chapter XI.
Theory of Electric Images.
155. Thomson's method of electric images
156. When two points are oppositely and unequally electrified, the surface for which the potential is zero is a sphere
157. Electric images
158. Distribution of electricity on the surface of the sphere
159. Image of any given distribution of electricity
160. Resultant force between an electrified point and sphere
161. Images in an infinite plane conducting surface
162. Electric inversion
163. Geometrical theorems about inversion
164. Application of the method to the problem of Art. 158
