Over the last 25 years, radiowave detection of neutrino-generated signals, using cold polar ice as the neutrino target, has emerged as perhaps the most promising technique for detection of extragalactic ultra-high energy neutrinos (corresponding to neutrino energies in excess of 0.01 Joules, or 1017 electron volts). During the summer of 2021 and in tandem with the initial deployment of the Radio Neutrino Observatory in Greenland (RNO-G), we conducted radioglaciological measurements at Summit Station, Greenland to refine our understanding of the ice target. We report the result of one such measurement, the radio-frequency electric field attenuation length $L_\alpha$. We find an approximately linear dependence of $L_\alpha$ on frequency with the best fit of the average field attenuation for the upper 1500 m of ice: $\langle L_\alpha \rangle = ( ( 1154 \pm 121) - ( 0.81 \pm 0.14) \, ( \nu /{\rm MHz}) ) \,{\rm m}$ for frequencies ν ∈ [145 − 350] MHz.

the tendency for marine fish to refuge in natural and artificial structures underwater is well documented, but the incidence of this behaviour among predatory sharks is not widely known. a sub-adult male nursehound scyliorhinus stellaris was tracked by intermittent acoustic telemetry over 168 days in a tidal sea lough. this individual, in-between undertaking nocturnal foraging excursions, refuged in at least five different narrow-entrance holes. refuge location was validated by underwater and surface observations during which time other nursehounds (sub-adult male and female), were also seen refuging, sometimes together. this indicates nursehound display philopatric behaviour centred on aggregation in ‘home’ refuges that, in this case, were labyrinthine rock systems.

The last paper on the winding-up of pension schemes was presented to the Institute by Gilley in March 1972. Since that time it has justifiably been the standard work on the subject and it has only recently been withdrawn from the Institute's examination syllabus. This paper is an attempt to up-date Gilley's work and to describe a complex and practical field of actuarial operation.

Since 1972 there has been a substantial amount of pensions legislation which has inevitably changed the detailed procedures involved in a pension scheme dissolution. Nevertheless, many of the general considerations and ideas expressed in Gilley's paper are still valid today.