On the liberal use of artificial ice in the ruling of India

In the context of a discussion of the impact of climate on various races’ fitness to rule:

This may have to be modified a little, but only a little, if F. Galton should prove to be right in thinking that small numbers of a ruling race in a hot country, as for instance the English in India, will be able to sustain their constitutional vigour unimpaired for many generations by a liberal use of artificial ice, or of the cooling effects of the forcible expansion of compressed air. See his Presidential Advice to the Anthropological Institute in 1881.

– Alfred Marshall [1920 – but 1 ed. in 1890], Principles of Economics, 8 ed., p. 603.