"With regard to the Russell tour you will no doubt have found out by now that the answers to most of the questions raised in your letter to Prof. Giblin are to be found in the copy letters sent out by E.C. Dyason last July. I would only like to emphasize that the arrangements with Lord Russell were definitely agreed between him and E.C. Dyason and were stated by E.C. Dyason to be binding on his heirs, executors and assigns. In particular:—
1. Lord Russell is to travel by air both ways
2. His wife is not accompanying him
3. The fee in addition to his normal travelling and hotel expenses is to be £600."