A lecture theatre in Durham University's new Calman Learning Centre has been named in his honour.

He was an honorary DSc of Bucharest University and foreign member of the Bulgarian Academy of Sciences.

Results on the interactions of muons were of importance in a number of other investigations, e.g. in the Davis experiment on solar neutrinos.

Introduction of the neon flash tube technique to the Indian and South African experiments on cosmic ray neutrinos was decisive and led to the clear identification of neutrino interactions and the determination of the cross section as a function of energy.

Has established recently fine astrophysical groups in Durham which have already made useful contributions to the theory of the propagation of cosmic rays in the galaxy, to the explanation of the ultra-high energy end of the primary spectrum and to the origin of the gamma-ray background radiation.

His optical group under Scarrott has recently obtained a beautiful map of the galaxy M82 in Rayleigh scattered light, and from it an accurate position for the luminous nucleus.