There was much in the British Medical press about routes to get to the Congress including a detailed explanation in The Lancet of both overland and sea routes.^[11] The Royal Mail Steam Packet Company offered doctors in Britain a 25% discount on the cost of the fare from Southampton to Lisbon.^[12] The South Eastern and Chatham Railway and the railway service in France also issued reduce price tickets for members wishing to attend the Congress.^[13]

The Great Britain and Ireland Committee convened a meeting on 13 July 1903 with Frederick William Pavy as chair. They reported that 150 people attended from Britain and Ireland. The Great Britain and Ireland Committee were unhappy with the radical changes to the Constitution of the congress specifically article 2 "congress shall be composed of Medical Men, Pharmacists, veterinarian and other persons practicing one of the different branches of medical science.... and that anyone who holds a professional or scientific title shall be admitted to take part in the Congress on the same terms as medical men". The opinion of the Great Britain and Ireland Committee was that this made the Congress unwieldy due to the number of people.^[14]