My dear Poll--At length I have received a letter from you. As the spell is now broken, I hope you will continue to write every three weeks. Observe, I do not admit the excuse you make of not writing because your sister had not written the week before; let each write their own week without regard to what others do, or do not do. I congratulate you, my dear aunt, on your new title. I hope you pay a great deal of attention to your niece, and that you have begun to give her lessons on the harpsichord, in Spanish, etc. Tell your sister I make her a present of Gregory's "Comparative View," inclosed herewith, and that she will find in it a great deal of useful advice for a young mother. I hope herself and the child are well. Kiss them both for me. Present me affectionately to Mr. Randolph and Miss Jenny. Mind your Spanish and your harpsichord well, and think often and always of, yours affectionately, TH. JEFFERSON. P.S.--Letter inclosed, with the book for your sister. _From Mary Jefferson._ Monticello, February 13th, 1791. Dear Papa--I am very sorry that my not having written to you before made you doubt my affection towards you, and hope that after having read my last letter you were not so displeased as at first. In my last I said that my sister was very well, but she was not; she had been sick all day without my knowing any thing of it, as I staid up stairs the whole day; however, she is very well now, and the little one also. She is very pretty, has beautiful deep-blue eyes, and is a very fine child. Adieu, my dear papa. Believe me to be your affectionate daughter, MARIA JEFFERSON. _To Mary Jefferson._ Philadelphia, March 9th, 1791.