The footnotes of The Dawn-Breakers, some of which are in French, are another example of his talent in the field of historical research. To appreciate the tremendous background of knowledge he possessed at the time of his translation of that book, it suffices to glance at the titles and authors of the fifty-five books he consulted, as listed in the Appendix.
- Hand of the Cause Ugo Giachery (‘Shoghi Effendi – Recollections’)