PRINCIPLES OF MANURING

MANURES

AND THE

PRINCIPLES OF MANURING

BY

C. M. AIKMAN, M.A., D.Sc., F.R.S.E., F.I.C.

FORMERLY PROFESSOR OF CHEMISTRY, GLASGOW VETERINARY COLLEGE, AND EXAMINER IN CHEMISTRY, GLASGOW UNIVERSITY; AUTHOR OF 'FARMYARD MANURE,' ETC.

THIRD IMPRESSION

WILLIAM BLACKWOOD AND SONS
EDINBURGH AND LONDON
MCMX

D. VAN NOSTRAND COMPANY
NEW YORK