Letter to Unknown
p242“I have read, too, Heyne's letters twice”
Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. I. Ithaca: Cornell University Press, 1983.
Fuller refers to "Heyne's letters," which Hudspeth identified as Heinrich Heine's work that became Die romantische Schule (1836), translated into English as Letters Auxiliary to the History of Modern Polite Literature in Germany (Boston, 1836).