No. 33.] 121 
Notwithstanding the results of our figures seem against the use of 
single eyes, yet human nature is so constituted that impressions are 
apt to have considerable force, even as against facts which seem coun- 
ter, and hence we aé the station, after careful watching of crops for 
two seasons, are as yet unwilling to acknowledge that single eyes are 
not preferable as seed. In OC. seven, whole potatoes used us seed, and 
C. eight, single eyes, the variation in the yield of good potatoes is but 
seven per cent of the average for the two plats, while in each half-plat 
the variation is fourteen per cent for C. seven, and eight per cent for 
C. eight. Hence in this latter trial the results cannot be interpreted 
as unfavorable to the single eyes. 
In the experiments of last year we seemed to have certain evidence 
in favor of eyes cut deeply from the substance of the potato as against 
eyes cut shallow. In our plats C. eight, C. nine and C. ten we this 
year sought to obtain verification of the hypothesis formulated from 
these facts obtained. The yields were, 
Rotten. 
Large. Small. 
O. 8. Hyes cut deep...... 456 lbs. 4 ozs. 87 Ibs. 13 ozs. 26 lbs. 2 ozs. 
ae os ayes cut half deep. 1472 811: 678) Sas Qh FAQs 
iaavemmives Cul shallows, 2/351) ** 10) 9: 4766) 16 669 QB S6.9g até 
Or calculated per acre, we have, 
Large. Small. Rotten. Total. 
ag) aba ss,. «5. 152.1 bush. 29.3 bush. 8.7 bush. 190.1 bush. 
EL ee yo 4's ee giv ays Obs Or coe: Bie 4.65 LUE Bens 
DOME ho, Sk ADRs pd iol SEO Ty Jerne tae! Loa Aas 
The variations between the half plats were in per cent of crop: 
For good potatoes. For total yield. 
SOD DAME «5 61a: siete} «Xi the © eihinieid ore, ocho +. 14 per cent. 15 per cent. 
Erin 80 pelts 3 oo Kid bm, actin. 2 elnie o's en a 1 ON 
ge i apa rea 10}. (ft ipa 
As the variation between C. eight and C. nine is less than the varia- 
tion between the half plats of each, the two must be considered as du- 
plicates, and as indicating no difference between deeply cut and half- 
deep cut seed. The difference between C. eight and nine and C. ten 
is plus twenty-eight per cent greater than between the half plats, and 
hence it seems certain that the shallow cut eyes yielded inferior crop. 
In order to afford a crucial test, whether the direction of cut had 
any influence upon tlie yield of single eyes, we planted C. three with 
eyes cut in the direction of the stem end, and C. four with eyes cut 
toward the seed end. The yields were as follows: 
Large. Small. Rotten. 
C.3, cut toward stem, 521 1bs.120z8. 98lbs. 2ozs. 197 lbs. 13 ozs, 
Semeemeipreverccds: . 27) 569 36F1'3 Fi LOB VE TA 86 216A) MQ gs 
Or calculated to the acre: 
Large. Small. Rotten. Total. 
Pipes el 173.9 bush. 32.7% bush. 66.0 bush. 272.6 bush. 
POM AEE Aku. LSD, Pras s BGS b 4 HAUS yes 28016 > <6 
[Assem. Doc. No. 33.] 16 
