Calendar: 1968-1969 Page 469

Annual Report of the Delegacy cxxvii Burge Calderbank Fannon Α Lewis Rush Α Α Smith Α and Ganguly Ν 'The elastic and inelastic scattering of 50 MeV protons RHEL Progress Report 1966 41 'Proton induced reactions Mg24 d' and Mg t' at 50 MeV RHEL Progress Report 1966 52 Calderbank Burge and Edwards Ά wedge-shaped scintillation detector for magnetic spectrometer Nuclear Instruments and Methods 43 1966 317 Calderbank Burge and Smith 'New energy levels in zinc nuclei Physics Ltiters in press Chapman 'V and propagation Proc XV General Assembly URSI 14 1966 'Radio noise of terrestrial origin Proc XV General Assembly URSI 1966 'L and measurements National Report Proc IV IQSYjCOSPAR General Assembly Annals of the IQSY 1967 Chapman Jones Llanwyn Todd and Challinor Observations on the propagation constant of the earth-ionosphere wave- guide in the frequency band to 16 kc Radio Science New Series 11 1273-82 Collins Ά method for measuring the infra-red reflectivity of microsamples Sci Instrum 44 1967 65 Collins Lightowlers and Dean 'Lattice vibration spectra of aluminium nitride Phys Rev 158 1967 883 Crowther Α and Dean 'Phonon interactions piezo-optical properties and the inter-relationship of the N3 and N9 absorption-emission systems in diamond Phys Chem Solids 28 1967 111$ Crowther Α Dean and Sherman 'Excitation spectrum of aluminium acceptors in diamond under uniaxial stress Phys Rev 154 1967 772 Cundill Μ Α and Sherman 'External modes of vibration of small polyatomic ions isolated in alkali halides Phys Rev Letters 16 1966 570 Dean 'Lattices of the diamond type Luminescence of Inorganic Solids ed Goldberg 1966 Ch pp 119-203 Domb 'Some recent developments in the theory of magnetic transitions Ann Acad Sci Fennicae VI 1966 167