he – a man devoid of theoretical knowledge – put forward the pretension that this separate body was to represent the scientific propaganda of the international, which was to be made the special function of this second international within the international.

This is all lower case. Can you fix that?
He – a man devoid of theoretical knowledge – put forward the pretension that this separate body was to represent the scientific propaganda of the International, which was to be made the special function of this second International within the International.