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.