48 
The yields are favorable to good sized seed pieces, but the quality, 
in our judgment, is in favor of the single eyes, although why it 
should be so is largely a matter of conjecture. 
PORTION USED AS SEED. 
Plats B. 7 and B. 8, were planted with White Star potatoes, cut 
into three pieces as lower, middle and upper thirds, three rows of 
each kind, the hills one foot apart, the drills 44 inches. Twenty 
pounds of phosphate per plat. The yields were:— 
Lower third of potato. 


Merchantable. Small. Rotten. Total. No. of 
Ibs. OZ. Ibs. OZ. lbs. OZ. Ibs. OZ. hills, 
B. 7, Upper 79 0 7 12 219 0 805 12 194 
B. 7, Lower 90 4 15 8 Tig 8 217 4 192 
B.8, Upper 78 0 re sons 995 4 308 0 196 
B. 8, Lower 82 8 8 12 145 0 236 4 194 
Mean 82 Pf 9 3 175 3 266 13 194 
- Upper third of potato. 
B. 7, Upper 71 12 6 8 245 4 323 8 195 
B. 7, Lower 84 0 10 4 110 12 205 0) 194 
B. 8, Upper 56 4 3 12 252 0 312 0 197 
B. 8. Lower 67 4 1 8 159 4 234 0 192 © 
Mean 69 138 7 0 19D el3 268 10 194 
Top third of potato. 
B. 7. Upper 51 4 5 8 238 0 294 12. 195 
B.7. Lower 84 8 11 0 114 8 210 0 195 
B. 8, Upper 60 0 5 12 236 4 302 0 196 
B. 8, Lower 68 8 8 12 166 4 243 8 192 
Mean ‘66 1 rf 12 188 12 262 9 194 
This trial certainly does not indicate that the one portion is su- 
perior to another in its influence upon crop. In the presence of so 
much rot, and the uneven distribution of the rot, the figures of total 
yield are those which must be consulted in preference to those of 
merchantable yield. This experiment must have frequent repetition, 
before any results can be deemed decisive. 
Two plats, E. 2 and E. 20, were planted with single eyes in the 
order as taken from the potato. The crop of the three-thirds, throw- 
ing the odd eyes in the central piece, were as below, 30 potatoes used 
on HK. 2, and 29 on E. 20. 
But third. Central third. Tip third. 
Plat E. 2. E. 20. Plat E.2. E. 20. Plat E. 2. E. 20 
No. of eyes 179. 177 204 211 177 177 
Total yield, lbs. 119.6 113.6 181.2 180.4 110.8 124 
Av. per eye, 0zs. 10.8 10.3 14.2 13.7 10:0) .uli2 
In this trial the central eyes have yielded the best. Arranging in 
tabular form our 1883 and i884 trials along with HK. 2 and E. 20, we 
have five trials. 
Yield calculated to the 100 eyes; lbs. 
No, of But Central Tip 
eyes third third third 
C. 5, 1883 576 87.3 156.4 142.0 
Dorin, 21884 528 92.2 119.9 96.5 
D. 10, 1884 549 65.9 77.5 53.8 
BE. 2, 1885 558 21.4 82.4 19.5 
E. 20 1885 565 — 20.1 31.9 21.9 
~) 
Mean 57.4 83.6 66.7 

