KEYNES'S APPRENTICESHIP WITH MARSHALL IN 1905

The article deals with Keynes's economic apprenticeship with Marshall in the Autumn of 1905. After detailing Keynes's readings in economics, if focuses attention on the 15 papers he wrote in answer to Marshall's questions. The papers, full of Marshall's "red ink" corrections and comments, reveal the existence of a fascinating dialogue between master and pupil which still deserves investigation. A review of their contents, ranging from the definition of capital to method of index numbers, use of mathematical symbols, business size, monopolistic princig and railway services, provides a unique opportunity to enter Marshall's laboratory and have a close-up view of the beginning of Keynes's controversial "career as an economist". It also shows that many of Keynes's later attitudes to methodological issues were rooted in his Marshallian background.