alexa_price added a note to Page 4 in Elisha Kent Kane Diary in A Diary and Journal from the Second Grinnell Expedition, saying “When EKK says that the average length of a female seal is 4. 5in, I think he is using the period to indicate feet. So the seal is 4 ft 5 inches. Although to modern readers it does look like he means 4.5 in, which is obviously not the case with sea...”