00874cam a22002651 4500 agr09001512 DLC 20260227110928.0 820626s1908 xx 000 0 eng agr09001512 (OCoLC)4233928 DLC DNLM TxCM DLC engger premarc TD741 .D8 WAA D899L 1908 Dunbar, William Philipps, 1863-1922. Principles of sewage treatment. By Professor Dr. Dunbar ... tr., with the author's sanction, by H. T. Calvert ... with 147 illustrations. London, C. Griffin & company, limited, 1908. xxiii, 271 p. ill. Translation of Leitfaden für die Abwasserreinigungsfrage. Bibliography: p. xv-xix. Sewage Purification. Sewage disposal. 7679 7679