Letter to Maria Rotch
p171“Eastlake, I think I have heard has written a good one.”
Fuller, Margaret. The Letters of Margaret Fuller. Edited by Robert N. Hudspeth. Vol. III. Ithaca: Cornell University Press, 1986.
Hudspeth identified clarify that Eastlake had not yet published his own art history at this date, but had edited Kugler's Handbook, which is the work Fuller is recommending indirectly.