June 3.—Went to Pictet's on English day.
June 4.—Went about Diodati's house. Then to see Shelley, who, with Mrs. Shelley, came over. Went in the evening to a musical society of about ten members at M. Odier's; who read a very interesting memoir upon the subject of whether a physician should in any case tell a lover the health [of the lady of his affections], or anything that, from being her physician, comes to his knowledge. Afterwards had tea and politics. Saw there a Dr. Gardner, whom I carried home in the calèche. Odier invited me for every Wednesday.
Came home. Went on the lake with Shelley and Lord Byron, who quarrelled with me.
[This might seem to be the matter to which Professor Dowden in his Life of Shelley (following Moore's Life of Byron and some other authorities) thus briefly refers. "Towards Shelley the Doctor's feeling was a constantly self-vexing jealousy [I cannot say that the Diary of Polidori has up to this point borne the least trace of any such soreness]; and on one occasion, suffering from the cruel wrong of having been a loser in a sailing-match, he went so far as to send Shelley a challenge, which was received with a fit of becoming laughter. 'Recollect,' said Byron, 'that, though Shelley has some scruples about duelling, I have none and shall be at all times ready
