Annual Report of the Consulting Chemist for 1881. 345 
Both the corn and root-crops in the Rotation experiments at 
Woburn yielded very satisfactory results in 1881. The rotation 
wheat produced about 7 quarters of good wheat, the rotation 
barley about 6 quarters, and the rotation mangolds from 20 to 
24 tons of clean roots, without the tops. 
The barley on the 24 plots of quarter of an acre each, 
which succeeded the experimental swedes grown with soluble 
and insoluble phosphates, also yielded satisfactorily, and the 
clov^er sown with the barley has come up well, and is now a strong 
plant throughout the whole 6-acre field, divided into 24 plots. 
With the view of testing the effects of soluble and insoluble 
phosphatic manures, on lighter soil than that of Warren Field in 
which the experiments were tried in 1879, four additional acres 
of light land were set aside for such experiments, so that besides 
the original 21 acres under experiment, 12 acres more land have 
been taken in hand for experimental purposes within the last 
two years. 
Some trials with maize, intended to be grown as a green 
forage plant, turned out complete failures. 
The maize was attacked by insects, and the few plants which 
escaped the ravages of insects did not properly ripen ; the 
maize, probably, was sown too late in the season. 
In the course of the year I paid fourteen visits to the experi- 
mental fields at Crawley-Mill Farm. 
Analijscs made for Members of the Boyal Agricultural Society from 
December 1880 to 1st December, 1881. 
Guano 86 
Fish guano 6 
Superphosphates and dissolved bones, and compound) ^-^ 
manures \ 
Bones, bone-dust and boiled bones 61 
Nitrate of soda 25 
Sulphate of ammonia 4 
Potash salts - 6 
Soot 4 
Refuse manures 25 
Wool-dust and shoddy .. ,. 22 
Sewage and sewage-manures 5 
Manure rape-dust 4 
Limestone, chalk and minerals 21 
Soils 60 
Corn, hay, malt-dust and other vegetable products .. 12 
Milk 1 
Feeding-cakes 319 
Feeding-meals 24 
Cattle spices 2 
Waters 87 
Examinations for iwisou 8 
Total 1058 
