Failyer, George Henry. The mineral composition of soil particles. By G.H. Failyer, J.G. Smith, and H.R. Wade. - Washington, Govt. print. off., 1908. - 36 p. 23 cm. LCCN: agr08001171 Subjects--Topical Terms: Soils--Analysis. LC Class. No.: S591 / .A12 no. 54