Volume II.- III. Particles with Spin.- A. One-Body Problems.- 129. Construction of Pauli matrices.- 130. Eigenstates of Pauli matrices.- 131. Spin algebra.- 132. Spinor transformation properties.- 133. Spin electron in a central field.- 134. Quadrupole moment of a spin state.- 135. Expectation values of magnetic moments.- 136. Fine structure.- 137. Plane wave of spin ? particles.- 138. Free electron spin resonance.- B. Two- and Three-Body Problems.- 139. Spin functions for two particles.- 140. Spin-dependent central force between nucleons.- 141. Powers of spin operators.- 142. Angular momentum eigenfunctions of two spin particles..- 143. Tensor force operator.- 144. Deuteron with tensor interaction.- 145. Electrical quadrupole and magnetic dipole moments of deuteron.- 146. Spin functions of three particles.- 147. Neutron scattering by molecular hydrogen.- IV. Many-Body Problems.- A. Few Particles.- 148. Two repulsive particles on a circle.- 149. Three-atomic linear molecule.- 150. Centre-of-mass motion.- 151. Virial theorem.- 152. Slater determinant.- 153. Exchange in interaction terms with Slater determinant.- 154. Two electrons in the atomic ground state.- 155. Excited states of the helium atom.- 156. Excited S states of the helium atom.- 157. Lithium ground state.- 118. Exchange correction to lithium ground state.- 159. Dielectric susceptibility.- 160. Diamagnetic susceptibility of neon.- 161. Van der Waals attraction.- 162. Excitation degeneracy.- 163. Neutral hydrogen molecule.- 164. Scattering of equal particles.- 165. Anamalous proton-proton scattering.- 166. Inelastic scattering.- B. Very Many Particles: Quantum Statistics.- 167. Electron gas in a metal.- 168. Paramagnetic susceptibility of a metal.- 169. Field emission, uncorrected for image force.- 170. Field emission, corrected for image force.- 171. White dwarf.- 172. Thomas-Fermi approximation.- 173. Amaldi correction for a neutral atom.- 174. Energy of a Thomas-Fermi atom.- 175. Virial theorem for the l³