Field Experiments at Wolurn in 1889 and 1890. 
377 
could be ascertained. 1 2 tons of dung to the acre were used in each 
case. Side by side with these an artificial mixture was tried, com- 
posed as follows : — 
3 cwt. mineral superphosphate 1 q „ j 
cwt kainit ^ >^ ^ (8 cwt. per acre, costing 
2 cwt. sulphate of ammonia J 
per acre. 
The potatoes (magnums) were planted on May 9, 1889, in Road 
Piece Field, the manure having been in all cases applied to the 
land previously. The crop was dug and weighed on September 26 
and 27. The following were the results : — 
Plot 
Manure per acre 
12 tons dung made from decorticated cot- > 
ton-cake / 
12 tons dung made from undecorticated i 
cotton-cake > 
12 tons farm-3'ard manure 
3 cwt. superphosphate 
3 cwt. kainit 
2 cwt. sulphate of ammonia 
Produce per acre 
tons cwt. qr. lb. 
8 13 1 20 
7 6 3 12 
7 16 2 8 
9 9 3 12 
By this it will be seen that the artificial manure produced the 
largest crop, and it is worthy of note that there were no more small 
potatoes in this produce than in any of the others. The most inter- 
esting part of the experiment, however, is that which brings out 
the superior manurial effect of the decorticated cotton-cake dung 
— as against that from the undecorticated cake. 
The composition of the farmyard manure used on plot 3 was 
too indefinite to justify certain conclusions being drawn, but, as 
mentioned, the animals in the yard had bean-meal fed to them 
largely. 
V. Lathyrus sylvestris. 
A small plot 8x8 feet was sown with the seed of this plant on 
April 6, 1888, but it lay dormant until August, when the plant 
began to come up. It gave no crop, however, until the next year, 
when it was cut green on August 29, 1889, the yield being 35 lb. 
green crop, or, if calculated to the acre, 10 tons 12 cwt. 2 qr. 22 lb. 
green produce per acre. This plot being so small, a larger one was 
sown in April 1890. Although the seed duly germinated, there was 
no crop fit to cut in 1890. 
It should be borne in mind that the price of the seed was no less 
than 21. 2s. per lb., and that for sowing an acre as much a'' 50 lb. 
of seed are recommended, an outlay of over lOOZ. an acre ! 
The produce of this same plot in 1890, also cut and weighed 
green, w^^s : — 
VOL. II. T, S. — 6 C C 
