Letters between the International Brigade Association (IBA) and J B S Haldane Letters between Hans Kahle of the IBA and J B S Haldane regarding Haldane's donation to the IBA and giving assurance that £40 will be forwarded to the ARP Coordinating Committee. Encloses a copy of the letter to be sent by the IBA to the ARP Coordinating Committee and a receipt for Haldane's donation. Mar 1942