SCHRADER, F.C. - Preliminary report on a reconnaissance along the Chandlar and Koyukuk rivers, Alaska, in 1899.

1900. 21st Annual Report United States Geological Survey , Part II; pp. 441-486, 2 fig. 8 photoplts. 1 fold. map. Plain wrps. 4to. This is the original 1900 print edition, not a later or modern reprint.