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

 

All Rights reserved

 

TO

SIR JOHN BENNET LAWES, Bart., D.C.L., LL.D., F.R.S.,

OF ROTHAMSTED,

AND

SIR J. HENRY GILBERT, M.A., LL.D., F.R.S.,

FORMERLY SIBTHORPIAN PROFESSOR OF RURAL ECONOMY,
UNIVERSITY OF OXFORD,
WHOSE FAMOUS INVESTIGATIONS DURING THE LAST FIFTY YEARS
HAVE SO LARGELY CONTRIBUTED TO BUILD UP
THE SCIENCE OF MANURING,

THIS WORK,

EMBODYING MANY OF THE ROTHAMSTED RESULTS,
IS DEDICATED.

 

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