Thisauthor wrote articles for the1911Encyclopædia Britannica
Articles written by this author are designated in the EB1911 by the initials "H. De."
This author wrote articles for the1913 Catholic Encyclopedia, and the list on this page is complete

Thisauthor wrote articles for the1911Encyclopædia Britannica
Articles written by this author are designated in the EB1911 by the initials "H. De."
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Some or all works by this author are in thepublic domain in theUnited States because they were published before January 1, 1931.
This author died in 1941, so works by this author are in thepublic domain in countries and areas where the copyright term is the author'slife plus 84 years or less. These works may be in thepublic domain in countries and areas with longer native copyright terms that apply therule of the shorter term toforeign works.
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Public domainPublic domainfalsefalse