Édouard Louis Trouessart (August 25, 1842 - June 30, 1927) was a French zoologist. August 25 is the 237th day of the year in the Gregorian Calendar (238th in leap years), with 128 days remaining. ... 1842 was a common year starting on Saturday (see link for calendar). ... June 30 is the 181st day of the year (182nd in leap years) in the Gregorian Calendar, with 184 days remaining, as the last day in June. ... 1927 was a common year starting on Saturday (link will take you to calendar). ... Zoology (Greek zoon = animal and logos = word) is the biological discipline which involves the study of animals. ...