The original sheet music is at Levy & American Memory:

Title: In The Eye Abides The Heart. In Den Augen Liegt Das Herz. Beautiful German Song.
Composer, Lyricist, Arranger: Composed by F. Abt. Translated by Stephen C. Foster. Arranged by H.K.
Stephen C. Foster H. K. Publication: New York: Firth, Pond & Co., 547 Broadway, 1851.
Form of Composition: strophic with chorus
Instrumentation: piano and voice
First Line: In the eye abides the heart, Every pure and tender feeling
First Line of Chorus: 'Tis the eye unveils the heart, Every pure and tender feeling
Engraver, Lithographer, Artist: Quidor Engvr.
Plate Number: 1350
Subject: Courtship & love
Call No.: Box: 067 Item: 085

In the eye abides the heart / by F. Abt.
CREATED/PUBLISHED
New York: Firth, Pond and Co., 1851.