Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/).
"An abstract of this report has already been published under the title, Preliminary statement on the Matanuska coal field: Bull. U.S. Geol. Survey no. 284, 1906."
Issued also as House doc., numbers 837, 59th Congress, 1st session.