No. 33.] 299 
It thus appears that Rose’s Invincible gave the largest yield of 
merchantable tubers; President Arthur second, and Nott’s Victor 
third. At the yield noted, the first produced at the rate of a little 
over 290 bushels of merchantable potatoes per acre; the second a 
little over 265 1-2 bushels ; and the third slightly less than 260 bushels. 
In contrast with this the German Red, and Knapp’s Snowbank 
produced no merchantable tubers at all. 
Rose’s Invincible gives also the largest total yield, or a little over 
317 bushels per acre. It appears to.the credit of this new variety 
that it produced but 27 bushels of unmerchantable tubers in a total 
(calculated) yield of 317 bushels. 
A comparison of the yield of potatoes grown in 1883 with that of 
the past season shows a falling off of about thirty-five per cent in the 
latter. We were visited with a severe drought shortly after the plant- 
ing, and a second during August, which may account for the light 
yield of the past season. We find, however, in comparing individual 
varieties, that the differences in yield are very farfrom uniform. 
Despite the smaller average yield of thirty-five per cent, for the 
crop of 1884, several varieties yielded larger in 1884 than in 1883. 
Variations in different Trials with Potatoes. 
In order to illustrate of how little value is a single test of a 
variety of potato, we present the following table giving the results 
of three plantings from the same stock of seed. The first is the 
Station yield of 1883, the second, the Station yield of 1884, and the 
third, the results obtained by Mr. Asher B. Evans, of Lockport, N. 
Y., with station seed. 
All are calculated to the row of one hundred feet. 
It will be observed that certain varieties give their maximum 
yield in each of the three columns. | 
Potato. 
STATION, 1888. StTaTrIon, 1884. Evans, 1884. AVERAGE. 
pS Se Ss pee 9 
2 nih: Pai Maa 
fH GAVES eae pan Bg FO A iar 
se 22 be 22 Gs Sh bs Se 
} nh Si eMseiny ot Runt sieers 
PAGivONdaCs,;.. c+ 6 os 151 187 £00197 19 194. 1013146 
PE LAM cia, fess s+ $4415 Banc25. ~ 26. S38 ab. oe 
American Giant..... 178 208 110 118 140 142 128 154 
Andrus’ White Rose. 75 116 AD SeeGtee cas ws DO LOS 
PABLOMISMGT oc x... 38 %O £0 ipods. 94-5 96.56. ere 
Baker’s Imperial..... 113 166 62 94 117 142 94 134 
Beauty of Hebron... 150 207 65... 85 86: +92 . 101.125 
Big Benefit......... 47 102 59-100... 2 ioee 2) ope bue 
Biase NO. LY... sat 2, om90* 21384 BL. 89.66 ~ 83-69 e102 
BSHSRNO. 50... d's 5s 45 106 57 867%5—COHCisd CDOS 
