Has returned from Canada. Thanks Ruffini for photograph of himself. Tells Ruffini he will search for reference to Horsley. Talks of travel plans to Italy, including Mosso at Turin. That the 5th int. Congress of Physiologists will take place at Turin 1901. Thanks Ruffini for work on muscular sense, will refer to his work in his account of Schaefer. Asks him to greet Botazzi.