When Tony Blair has finished George Dangerfield's The Strange Death of Liberal England about the Liberal Party in the early years of this century ("Passion and Compassion", 19 January), he may care to look at Ray Challinor's book covering the same period: The Origins of British Bolshevism. This shows how the conditions which caused a collapse of the cross-class politics of the liberals led to a dramatic rise of the left. It should give Mr Blair something to think about as the election approaches.

Keith Davies, Cardiff