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"..Mary Cassatt, sister of Mr. Cassatt, President of the Pennsylvania Railroad, who has been studying painting in France and owns the smallest Pekingese dog in the world."
"It is absolutely necessary, while what I saw yesterday at Miss Cassatts is still fresh in mind, to tell you [Lucien, his son] about the colored engravings she is to show at Durand-Ruels at the same time as I. We open Saturday.. .You remember the effects you strove for at Eragny? Well, Miss Cassatt has realized just such effects, and admirably: the tone even, subtle, delicate, without stains on seams: adorable blues, fresh rose, etc."

Mary Stevenson Cassatt was an American painter and printmaker. She was born in Allegheny, Pennsylvania, but lived most of her adult life in France, where she befriended Edgar Degas and exhibited with the Impressionists. Cassatt often created images of the social and private lives of women, with particular emphasis on the intimate bonds between mothers and children.
"..Mary Cassatt, sister of Mr. Cassatt, President of the Pennsylvania Railroad, who has been studying painting in France and owns the smallest Pekingese dog in the world."
"She [Mary Cassatt] has infinite talent. I remember the time we started a little magazine called Le Jour et La Nuit together. I was very much interested in processes then, and had made countless experiments [in printing; Degas mainly mono-type - Mary Cassatt mainly etchings].. .You can get extraordinary results with copper; but the trouble is that there are never enough buyers to encourage you to go on with it."
"..crushed by the strength of this Art [the old Egyptian art].. .I fought against it but it conquered, it is surely the greatest Art the past has left us.. ..how are my feeble hands to ever paint the effect on me."
"O how wild I am to get to work, my fingers farely itch & my eyes water to see a fine picture again."
"M. Degas and Mlle. Cassatt are, nevertheless, the only artists who distinguish themselves.. ..and who offer some attraction and some excuse in the pretentious show of window dressing and infantile daubing."
"..we [the Impressionists ] are carrying on a despairing fight & need all our forces."