Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to B. J. S. Cahill Esq., Oakland, California, USA Acknowledges the 2 dollars sent as payment for the Year-Book. Informs a copy will be sent out once new ones are published in mid January. As the 2 dollars converted to 8/1 and the cost of the Year Book plus postage is 7/6, gives the change of threepence in stamps. 22 December 1930