Thanks ever so much for your very cordial letters dated May 26 and June 2. I
certainly am proud of the confidence which you expressed in these letters to me.

Op. 47: In order to make sure that the engraver who will engrave your Op. 47
once more will get a perfect manuscript, I have now entered all alterations from
✎ the proof which you sent to me on another proof and this work will be terminated
in approximately three weeks, at which time I will take the liberty of forwarding
to you both copies, so that you can give me your O. K. that all changes have been
entered carefully in the additional proof, so that the engraver will not have any
doubt whatsoever when he starts re-engraving your Opus. As soon as I have received
you approval on this proof, it will be immediately engraved, and a proof of the new
engraving will be forwarded to you, so that you can then give your final O. K.

Op. 16, New Version: Please note that the engraver is still working on it; and,
as soon as we get proofs, I will have them corrected and will then mail them to you
for your final approval before printing the Score.

Op. 9: I fully realize your generosity in not asking for an advance royalty; how-
ever I am nevertheless not in the position to make the necessary payments to Schirmer
and cannot print additional material or Scores to this work now. Even if Schirmer
would turn the remaining stock of this material over to me, I have now prepared my pro-
duction schedule for the next two years, and I am therefore unable to tackle any addi-
tional works. This is the only reason why I am unfortunately not in the position to
take advantage of you offer concerning Op. 9.

Mr. Mitropoulos: From your letter dated June 2, I noticed that Mitropoulos re-
turned the Score and the set of Parts in the Old Version to you. He undoubtedly made
a mistake by sending them to you, because I understand that he rented this material
from the Free Library of Philadelphia, who at that time secured permission from Summy’s
to rent this material to Mitropoulos. It is obvious that since I have the old Parts
on hand here, I would not give permission to the Free Library of Philadelphia to rent
their Sets out to Orchestras. ✎

I am enclosing herewith a set of my present catalogs; and, if you or Mr. Hoff-
mann would like to add some of the works which are not included in your personal
libraries, please do let me know the PETERS EDITION numbers, and it will be a great
pleasure for me to forward such reference copies to both of you.