Quoted by An Amoeboid Theatre: Marion Greenwood Bidder's physiological research at Cambridge (1879-1899)
Description:

'the post [of Demosntrator of Physiology at the Balfour Laboratory] required that she [Greenwood] invest a considerable amount of energy... As her collaborator and friend Edith Rebecca (Becky) Saunders would later note:

It is difficult... to appreciate the amount of work involved in teaching... under the conditions which then existed. The courses had to be organized from the beginning. All equipment had to be bought or borrowed, the strictest economy having to be exercised in every way... Had Miss Greenwood not been endowed with a splendid constitution she could hardly have accomplished all that was required and have carried out research at the same time.