IN THE PURITY OF FOOD AND DRUGS, AND IN GENERAL ANALYTICAL AND MICROSCOPICAL RESEARCH. EDITED BY G. W. WIGNER, F.I.C., F.C.S., LONDON AND AMERICA, ONE OF THE Hon. Secretaries of the Society of Public Analysts; AND J. MUTER, Ph.D., F.I.C., F.C.S., Vice-President of the Society of Public Analysts. VOL. VI. 1881. LONDON: Published for the Proprietors, by Messrs. BAILLIERE, TINDALL & COX, King William Street, Strand, W.C. |