Mixed Herbage of Grass-Land. 
155 
came Ranunculus (acris and bulbosus), and Acliillaca millefolium. 
But none of the Miscellaneous plants enumerated were so abundant 
here as under the influence of farmyard-manure alone ; still, the 
amounts recorded in the Tables are attributable rather to their 
frequency than to great luxuriance. 
Effects of Ammonia- Salts and Superphosphate of Lime. 
Ammonia-salts in conjunction with superphosphate of lime, 
gave considerably more produce, a larger proportion of Gramina- 
ceous herbage, and a larger proportion referable to the five pre- 
dominating Graminaceous genera than superphosphate of lime 
alone : the proportion of the latter being increased from 51 to 
56^ per cent, of the total produce. The proportions of Poa 
trivialis and Lolium perenne are not much affected by the 
addition of the ammonia-salts ; but those of Festuca duriuscula, 
Avena pubescens, and A. flavescens are considerably reduced; 
whilst the inferior grasses, Agrostis vulgaris and Holcus lanatus 
(especially the former), are brought into very considerable pro- 
minence. Although, therefore, the amount of produce was much 
increased by the addition of the ammonia-salts, the character of 
the Graminaceous plants developed was somewhat inferior. 
Dactylis glomerata was not encouraged by the combination in 
question. 
As in other cases where nitrogenous manures Avere freely 
employed, Leguminous herbage of all kinds was almost excluded. 
Of Miscellaneous herbage — as under somewhat similar con- 
ditions in other cases — Rumex acetosa was by far the most 
prominent element, being both very abundant and very luxuriant 
Carum Carui was likewise both abundant and luxuriant, but had 
shedded a good deal of its seed ; Ranunculus acris and R. bul- 
bosus were frequent rather than luxuriant ; Achillaja millefolium 
occurred in notable quantity ; other Miscellaneous species were 
somewhat few in number and insignificant in amount. 
Effects of Nitrate of Soda and mixed Mineral Manure. 
By nitrate of soda and mixed mineral manure together both the 
amount of produce and the proportion of it referable to the few 
predominating Graminaceous species were greater than by either 
nitrate of soda alone or mixed mineral manure alone. Where 
the smaller amount of nitrate of soda was used with the mixed 
mineral manure, Avena flavescens, Holcus lanatus, and Poa 
trivialis were the predominating grasses ; and, according to the 
figures, Festuca duriuscula and Agrostis vulgaris were also in 
large amount, though the notes taken on the ground did not lead 
