On the Buoyancy of Some Deep-Sea Sharks. Proceedings of the Royal Society of London, Series B, 171, 415–429
DOI: 10.1098/rspb.1969.0003
The choroidal tapeta of some cartilaginous fishes. Journal of the Marine Biological Association of the United Kingdom, 44(1), 219–258
DOI: 10.1017/S0025315400024760
The visual pigments of some deep sea elasmobranchs. Journal of the Marine Biological Association of the United Kingdom, 43(1), 65–70
DOI: 10.1017/S0025315400005245