I have aimed at recalling attention to the fact that architecture is not a mystery to be jealously concealed from the uninitiated, or a go-as — you-please affair without principles or tradition, but an expression of the human intelligence, conditioned by the same laws and capable of the same critical analysis as any other imaginative and intellectual effort. For my ishort comings in this endeavour, I must plead the limited opportunity possible to a writer whose principal work lies elsewhere.