[Aveusr, 1897.] 
THE 
SCIENTIFIC TRANSACTIONS 
OF THE 
mo ci DUBLIN SOCIETY. 
VOLUME VI.—(SERIES II.) 
XI. 
THE COURSE AND NATURE OF FERMENTATIVE CHANGES IN NATURAL 
AND POLLUTED WATERS, AND IN ARTIFICIAL SOLUTIONS, AS 
INDICATED BY THE COMPOSITION OF THE DISSOLVED GASES. 
(Part IV.) Humus; irs Formation anp Iyriuence 1n Nirrirication. 
By W. E. 
ADENEY, Assoc. R.C.Sc.1., F.1.C., Curator in the Royal University, Dublin. 
DUBLIN: 
PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 
WILLIAMS AND NORGATE, 
14, HENRIETTA STREET, COVENT GARDEN, LONDON; 
20, SOUTH FREDERICK STREET, EDINBURGH; anv 7, BROAD STREET, OXFORD. 
PRINTED AT THE UNIVERSITY PRESS, BY PONSONBY AND WELDRICK. 
1897. 
