Note 14 — TRANSACTIONS (continued 2)
Reading edition
“Tests of Coal for House Heating Boilers,” by D. T. Randall, Bulletin No. 336, U. S. Geological Survey, 1908.
Reading edition
“Tests of Coal for House Heating Boilers,” by D. T. Randall, Bulletin No. 336, U. S. Geological Survey, 1908.