314 French Experimental Farm at Van jours. 
nitrogen produced 935 lbs. of beet, and in the second onlj 
124 lbs. 
8. It is, however, probable that the virtue of the night-soil is 
then wholly absorbed, whilst it is generally admitted that only one- 
half of that contained in ordinary manure is consumed by a crop 
of beet. The relation, therefore, between the two manures would 
not be as 935 to 124, but rather as 935 to 248. 
9. It must be added that the quantity of vegetable matter 
already in the soil (the previous crop of lucerne having been 
ploughed in) and the wet season had probably aided the action 
of the night-soil, more than that of the other manure. 
10. Night-soil does not act on all other plants to such a re- 
markable degree as on beet. The experiments made near the 
" reservoir " would lead to the following classification in their 
order of adaptation : — 
1. Beetroot, turnips, swedes, carrots, and cabbages. 
2. Hemp and rape. 
3. Green forage-crops, especially Italian rye-grass ; maize, 
and sorghum. 
4. Cereals. 
5. Potatoes, Jerusalem artichokes, leguminous green crops. 
6. Pulse crops. 
11. For all these plants night-soil diluted with water is much 
superior both to farmyard manure, and to pure night-soil, how- 
soever this last may be applied. 
12. The decided superiority of the " tubular system " over the 
barrel and scoop is a necessary consequence of the great supe- 
riority of diluted over pure night-soil. In an economical point 
of view, the latter mode is out of the question if the bulk of the 
dressing is to be increased fourfold. 
13. A serious objection to night-soil as manure for the grasses 
generally, and the cereals in particular, or even for rape, is, 
that when applied in considerable quantities (from 12 to 20 tons 
per acre), it produces rank vegetation, which in a rainy season 
leads to the crop being lodged. 
14. On the other hand, it seems largely to increase the amount 
of nitrogen and minerals contained in green crops, and there is 
every reason to believe that it exercises a like influence on other 
plants. 
15. Farmyard manure, when applied in a liquid form, and 
contrasted with the same amount laid on in the usual manner, 
showed itself far superior the first year, and but little inferior in 
the second. 
In conclusion, it may be stated that the series of experiments 
will be continued and tested by others, designed to check or con- 
firm the inferences already drawn. 
