HISTO RY OF DISCO VER Y AND EXPL ORA TI ON 9 
graphic details as to the still wholly unknown interior. We 
are indebted for important details to Owen, who in 1824 
Alfred Graiidiclier. 
made accurate observations of the west coast and of 
parts of the east coast. 
Just as at an earlier time certain mountain tops in the 
interior were inserted at pleasure, so now, even up to the 
