Letter from Geo Fras [George Francis] Fitzgerald, Hotel Metropole, London, to [Joseph] Larmor He comments on the expense of rooms in Bristol. He describes a problem he is having with the osmotic pressure question, which he could solve with [George] Boole's 'Differential equations', but the hotel does not have a copy. He discusses osmotic pressure and the function of temperature, concluding with an invitation for Larmor to dine, so that they can talk this over. 3 August 1897