Page:Philip Birnbaum - ha-Siddur ha-Shalem (The Daily Prayer Book,1949).pdf/9

 ACKNOWLEDGMENTS

In the course of his work on the Siddur, the author has consulted many authorities for guidance. He is deeply grateful to Rabbi Hayyim Heller for his illuminating suggestions.

The writer is equally indebted to Professors Louis Ginzberg, Abraham A. Neuman, Chaim Tchernowitz, Alexander Marx, Solomon Zeitlin, Saul Lieberman, Joseph Reider, Israel Efros, Boaz Cohen, Abraham Heschel and Simon Greenberg for their helpful advice and encouragement.

Grateful thanks are expressed to Doctors Joshua Bloch, Julius H. Greenstone, Solomon Grayzel, Mortimer J. Cohen, William Chomsky and Leon Liebreich for their invaluable aid and general interest.

Mr. Daniel Persky and Mr. Isaac Rivkind deserve special mention for their assistance in various points of Hebrew grammar, lexicography and bibliography.

The author also wishes to thank Messrs. Menahem Menschel, Hyman A. Segal and Alfred Newmark of the Hebrew Publishing Company for all they have done to help in the publication of this prayerbook.