found: His Happiness, 1906:t.p. (Karl Hilty)
found: Happiness, 1903:t.p. (Carl Hilty)
found: OCLC database, July 3, 2002:(hdgs.: Hilty, Karl, 1833-1909; Hilty, Karl; Hilty, Karl, 1833- ; Hilty, Carl; Hilty, Carl, 1833- ; Hilty, Carl, 1833-1909 ; usages: C. Hilty, Carl Hilty, Karl Hilty)
found: La neutralité de la Suisse, 1889:t.p. (par Charles Hilty, professeur à l'Université de Berne; work translated by F.-H. Mentha)
found: Happiness, 1904, via Google books, April 13, 2010 :t.p. (Carl Hilty, professor of constitutional law at University of Bern) p. ix (Carl Hilty; b. 1833; author of The neutrality of Switzerland (Die Neutralität der Schweiz in ihrer heutigen Auffassung), Bern, 1889, French translation by Mentha, 1889)
found: DNB via VIAF, Apr. 14, 2010 (hdg.: Hilty, Carl, 1833-1909; other names, Hilty, Karl; Hilty, C.; historian, lawyer, evangelist)