Calendar: 1968-1969 Page 470

cxxviii Annual Report of the Delegacy Domb and Heap 'The classification and enumeration of multiply connected graphs Proc Phys Soc go 1967 985 Edwards Fannon Α Burge Smith Α and Swales 'The scattering of 50 MeV protons by 64Zn and 1'4Cd Nuclear Physics A93 1967 370 Edwards and Osborne Ά low friction air-supported pulley and its use in floating wire measure- ments Sci lustrum 38 1967 806 Fannon Α Burge Smith Α and Ganguly Ν 'Elastic and inelastic scattering of 50 MeV protons by '2C and 16O Nucl Phys A97 1967 293 Gaunt 'Hard-sphere lattice gases II Plane-triangular and three-dimensional lattices Chem Phys 46 1967 3237 Glass 'Reactions between vacancies and impurities in magnesium oxide Cr3 -ion impurities Chem Phys 46 1967 2080 Glass and Searle Τ 'Reactions between vacancies and impurities in magnesium oxide II Mn4 -Ion and OH -Ion impurities Chem Phys 46 1967 2092 Jones Llanwyn 'Schumann resonances and propagation for inhomogeneous iso- tropic ionosphere profiles Atmos Ten Phys 29 1037-44 Joyce 'Spherical model with long-range ferromagnetic interactions Phys Rev 146 1966 349 'Classical Heisenberg model Phys Rev 155 1967 478 Joyce and Bowers 'Cluster series for the infinite spin Heisenberg model Proc Phys Soc 88 1966 1053 'High-temperature specific heat and susceptibility of the classical Heisen- berg model Proc Phys Soc 89 1966 776 Lewis Burge Rush Α Α Smith Α and Ganguly Ν 'Polarization and asymmetry in 50 MeV proton scattering Nuclear Physics in press Lightowlers Ε 'Chemical impurity measurements on diamond by activation analysis Science and Technology of Industrial Diamonds Proc of the International Diamond Conference Oxford 1966 ed John Burls 1967 27-39 Lightowlers and Collins 'Electrical transport measurements on synthetic semiconducting diamond Phys Rev 131 1966 685