Frustratingly little seems to be known for certain about Boehe's compositions. He seems to have given up composition entirely to concentrate on his distinguished careeer as a conductor.
ERNST BOEHE: A CATALOGE OF THE ORCHESTRAL MUSIC
Fantasy for Cello and Orchestra (?)
Fantastic Waltz "Elfenspuk" for orchestra
1902-05: "From Odysseus' Voyages": Four Episodes for Large Orchestra, op.6: 85 minutes + (cpo cd)
1905-06: Symphonic Poem "Taormina", op.9: 28 minutes + (cpo cd)
1911(pb.): Tragic Overture in D minor, op.10: 18 minutes + (cpo cd)
1909(pb.): Symphonic Epilogue to a Tragedy for orchestra, op.11: 20 minutes + (cpo cd)
and
"Stille der Nacht" for voice and orchestra(published 1903)
According to Musikmph.de, also Stille der Nacht, for voice and orchestra. (Hrm, as in Shtil di nakht iz oysgeshternt :) - wrong decade, wrong language, ok...)