THE BATTLE OF LIFE. 103 
are specially noteworthy for their abundance ; Ranuziculi 
are also in fair quantity. Plantago has diminished, but 
the most remarkable feature is the enormous quantity of 
Cerastium triviale produced under the influence of this 
manure. 
Nitrate of soda gives a late-ripening dark green crop, 
more leafy than stemmy in character, but nevertheless 
showing a greater disposition to form stem than in the 
case of plants treated with ammonia. 
Superphosphate and Ammonia.—The effects produced 
by this combination, have corresponded to those which 
are met with in other plots to which ammonia is added, 
viz., increased produce, chiefly of graminaceous herbage, 
greatly diminished leguminous herbage, and relative ab- 
sence of miscellaneous plants. Festuca ovina has enor- 
‘mously increased, and, to a less extent, the hardy creep- 
ing Agrostis vulgaris. On the other hand Anthozan- 
thum odoratum, Holcus lanatus, and Avena pubescens, 
have decreased. The crop is usually later in ripening 
than in the case of that to which the superphosphate 
alone is applied, and with more dark green leaf and less 
stem, characters which indicate the presence of ammonia. 
Minerals and Ammonia.—In all the plots to which 
ammonia and minerals have been continuously applied, 
the produce is large, the per-centage and weight of 
grasses large, those of leguminous plants small or nil, 
and those of miscellaneous weeds also small. These effects 
are greater and more observable, the larger the quantity 
of ammonia, though the effects are by no means doubled 
in intensity, when the quantity of ammonia is doubled. 
The average produce has been larger than that of the 
other plots. The number of species has diminished, 
especially in the case of miscellaneous plants. Where the 
ammonia was in relatively slight proportions, Festuca 
