MANURES 



AND THE 



PRINCIPLES OF MANURING 





BY 



C. M. AIKMAN, M.A., B.Sc., F.E.S.E, F.I.C. 



PROFESSOR OP CHEMISTRY, GLASGOW VETERINARY COLLEGE; 



EXAMINER IN CHEMISTRY, GLASGOW UNIVERSITY; 



AUTHOR OF 'FARMYARD MANURE,' ETC. 



WILLIAM BLACKWOOD AND SONS 



EDINBURGH AND LONDON 



MDCCCXCIV 



