LETTER FROM MRS. SOMERVILLE TO THE REV. DR. SOMERVILLE., Edinburgh, 1st June, 1812.
written by Mary Fairfax Greig Somerville, 1780-1872; edited by Martha Somerville; in Personal Recollections, from Early Life to Old Age, of Mary Somerville: With Selections from her Correspondence (London, England: John Murray, 1873), 89-89