Copy letter from Robert William Frederick Harrison, to E Edser, 3 Hilly Fields Crescent, Brockley, S.E. Harrison explains that they cannot promise acceptance of the exhibit offered by Edser, due to existing demands on their space, but they can make a definite decision on including the experiments if he can wait until the end of the week. Regardless of the outcome, the large bay Edser mentions is already allotted. 23 April 1907