Subject: Polar regions

Printed order for Dr. Isaac Israel Hayes to go on duty as assistant to the Medical Officer of the Day at 10 o'clock on September 17, 1864. The order is printed, not handwritten. The document is related to the biographical information provided, describing Dr. Hayes's career as an Arctic explorer, surgeon, and later, politician. The description notes that the biographical information in the record draws on family papers, diaries from Hayes's expeditions, and other unpublished primary sources.