ON THE MIXED HERBAGE OF PERMANENT MEADOW. 
1341 
that fungi are among the most highly nitrogenous of plants, and are also very rich in 
potass. The principal fungus met with on the rings is the common Champignon, 
Marasmius oreades; and the grass of the rings is extremely luxuriant, the species 
most favoured being Poa trivialis and Holcus lanatus ; whilst among the Leguminosse 
Lathyrus pratensis is the most prominent, and among the Miscellanese Rumex Acetosa 
and Conopodium denudatum are particularly luxuriant. On the comparatively 
exhausted space within the rings every description of herbage is much less luxuriant, 
and the finer-leaved grasses again become more predominant. Further particulars on 
this subject will be found in a note by one of us, “ On the Occurrence of Fairy-rings,” 
Jour. Linn. Soc. (1875), Botany, vol. 15, p. 17, et seq.; and the chemical aspects of the 
question will be further treated of in the chemical section (Part III.) of our report. 
7. Ammonia-salts (400 lbs. 'per acre), with mixed mineral manure , 
including potass; Plot 9. 
Thus far we have considered the results obtained without manure, by various 
nitrogenous manures alone, and by various mineral manures alone. We have now to 
call attention to those yielded by mixtures of the nitrogenous and mineral manures. 
Among these the first to consider are the effects produced by a mixture of the same 
description and amount of ammonia-salts as were used alone on plot 5, and the same 
mixed mineral manure (including potass) as was used alone on plot 7. Accordingly, in 
the table (LXXI., pp. 1342-3), besides the percentage of each species, its produce per 
acre, and its greater or less amount than without manure, in each separation-year, 
there is given the increase or decrease of each species, in each separation-year, com¬ 
pared with the corresponding results obtained, on the one hand on plot 5 with the 
ammonia-salts alone, and on the other on plot 7 with the mixed mineral manure alone. 
It should also be stated that there has been no change in the manuring of either of 
these three plots from the commencement. 
With the mixture of both nitrogenous and mineral manure there was more than 
twice as much produce as without manure, nearly twice as much as with ammonia- 
salts alone, and nearly one and a half time as much as with the mineral manure alone. 
There was some falling-off in the later compared with the earlier years of the first 20, 
though in a less degree than with the ammonia-salts alone; whilst with the mineral 
manure alone there was increase rather than diminution. With the mixture, however, 
there was, during the next five years, a higher rate of produce, even of first crops, 
than during the first 20, notwithstanding that in the later years the second crops have 
been removed from the land. With the nitrogen supplied in conjunction with mine¬ 
rals there was a considerably greater yield of nitrogen in the produce than with 
either the ammonia-salts alone, or the mixed mineral manure alone; and of mineral 
matter taken up per acre, there was more than twice as much as with the ammonia- 
salts alone, and considerably more than with the mineral manure alone. In a word, 
with the combination of both nitrogenous and mineral manure, there was more hay, 
MDCCCLXXXII. 8 I 
