Letter from John Herschel, to [Mary Cornwallis Herschel] He wishes tht Mary had all of his accounts to keep. His memory is bad and he has hunted for information, which he relays, noting cheques and balances. He has sent her money and wishes she could put money matters more clearly, to save him time. He is not grumbling about expenditure, only at ignorance of it. no date [January 1872?]