290 
JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
From the results of the last two years' trials shown on Table 4a, it 
seems to be a great mistake to cut small seed, because those which pass 
through a IVinch riddle, when planted whole, produced 2 tons 5 cwt. 
more per acre than when cut in two. or a gain of 4_'6. 3s. per acre. 
TABLE No. 4a. 
Sets passed theough 1^-inch Eiddle versus same Sets cut in Two. 
Yield per acre 
18D3 
1839 
Average 
Size of seed . . - 
Average weight of sets . 
Whole sets 
passed 
through 
Ij-in. riddle 
Whole sets 
passed 
through 
1^-in. riddle, 
cut in two 
Whole sets 
passed 
through 
l|-in. riddle 
1'37 oz. 
Whole sets 
passed 
through 
1^-in. riddle, 
cut in two 
0-6SOZ. 
Whole sets 
passed 
through 
1^-in. riddle 
Whole sets 
passed 
through 
1^-in. riddle, 
cut in two 
Saleable 
Small .... 
T. C. Q. 
10 1 2 
0 11 2 
T. C. Q. 
7 10 0 
0 5 3 
T. L. Q. 
11 in 3 
0 13 2 
T. C. Q. 
10 7 3 
0 5 3 
T. C. Q. 
11 0 2 
0 12 2 
T. C. Q. 
9 13 
0 5 3 
Total . 
10 13 0 
8 13 
12 13 1 
10 13 2 
11 13 0 
9 7 2 
Increase 
Gain 
2 11 1 
£7 2 3 
1 19 3 
±o 3 9 
2 5 2 
£6 3 0 
"We now come to the last factor, viz. manures. These experiments 
will show the elfects and value of difierent manures. 
In each case one-tifteenth of an acre was weighed : all the plots were 
planted with ' British Queen ' or ' Hough Giants,' with whole sets. 
The farmyard manure was put in the drill at the time of planting, 
and the artificial manures were sown on top of the farmyard manure, 
except in one case where nitrate of soda was applied as a top-dressing in 
June. 
The farmyard manure was considered worth (js. per ton, and the 
saleable potatos are calculated as being worth per ton. small at *"1 
per ton, and the diseased are not counted at all. 
On the sulphate of ammonia and nitrate of soda plots exactly the 
same quantity of nitrogen was applied in each case, and the same 
quantity of potash was applied when kainit and 1 cwt. muriate of 
potash were tried. 
In the following tables the weights obtained are given per acre. 
