, 2017, Alternatives to Darwinism in the early twentieth century, in R. G. Delisle (ed.), The Darwinian tradition in context, Dordrecht, Springer, pp. 195-217.
, 2012a, Monism in Britain: biologists and the rationalist press association, in T. H. Weir (ed.), Monism, Basingstoke, Palgrave Macmillan, pp. 179-196.