Maine-Grown Certified Seed Potatoes 
“Potatoes" 
Were introduced into New England by some immi¬ 
grants from the North of Ireland in 1718 and were first 
raised in the garden of Nathanial Walker of Andover, 
Mass. 
Selected Early Rose 
(Early). Its tubers are roundish, oblong and somewhat 
flat, while the skin is flesh-colored or pink. Not as pro¬ 
lific as some later sorts, but is extremely early. 100 
lbs., $3.25; 60 lbs., $2.10; 30 lbs., $1.10; 15 lbs., 65c. 
Selected Carman No. 3 
A handsome, round white variety of the best quality; 
large, almost no small tubers. Claimed by the introducer 
to outyield any potato of its class. Vines large and vig¬ 
orous, not troubled by bugs or blight as much as those 
of older sorts. 100 lbs., $3.00; 60 lbs., $1.90; 30 lbs., 
$1.00; 15 lbs., 55c. 
FORMALDEHYDE. Prevents potato diseases and in¬ 
sures a clean healthy crop. 
Directions for treatment of potatoes for common 
scab, black scurf or rhizoctonia and black leg, cold 
method: 
Soak the uncut tubers 1 Vi hours in solution of one 
pound formaldehyde in 30 gallons of water. If tubers 
are first dipped in or sprinkled with water, then cov¬ 
ered with burlap sacks to keep them moist for a day 
or two before treatment, soaking period may be de¬ 
creased to one-half hour and the effectiveness in¬ 
creased. See page 76. 
NEW IMPROVED SEMESAN BEL for seed potatoes. 
For white potatoes Semesan Bel is valuable for com¬ 
bating seed-borne rhizoctonia and scab, and also 
for protecting the seed against rotting. The appli¬ 
cation is simple and requires very little extra labor. 
Directions for use with each package. See page 76. 
Raffia for Tying 
Raffia is the straw colored inner skin of a palm found 
in Madagascar. It is very strong and tough but soft and 
flexible, which makes it the very best material for tying 
vegetables, plants, vines, etc. It is better than twine, 
as it does not cut the plants and is much stronger. It is 
also used for making baskets. Raffia comes in hanks 
of from 1 to 5 lbs. We offer the best grade. Price per 
pound, 30c, not postpaid. 
Culture. Cut the seed into pieces containing two or 
three eyes. Plant in rows 3 feet apart, and drop 1 5 to 18 
inches apart in the row. One-half peck of Potatoes should 
be sufficent to plant 100 feet of row; ten to twelve 
bushels of seed are required per acre. Cultivate constant¬ 
ly and thoroughly, and work the soil well up around the 
plants. Spray for both insects and blight. 
POTATO PRICES 
Subject to Change Without Notice 
Certified Seed 
100 lbs., $3.00; 60 lbs., $1.90; 30 lbs., $1.00; 
15 lbs., 55c. 
Certified Green Mountain 
This is the most popular variety and is used as a main 
crop winter sort generally throughout the United States. 
It is a white skinned variety of flat, oval form, very 
smooth and attractive. It ripens slowly and is an ex¬ 
cellent keeper. 
Certified Gold Coin 
Productive and of unsurpassed quality. Very uniform 
in size, never over-large, but few small tubers. Form 
oblong, rather broad and thick. Skin almost white, with 
just enough of a light golden tinge to make it distinct 
from the white-skinned varieties and having that rich 
russet appearance generally considered an indication of 
good quality. Vine of strong, vigorous growth, not easily 
affected with blight. 
Certified Irish Cobblers 
An early, white-skinned variety, very short, thick, 
inclining to round. This is yearly increasing in popularity 
for the early market. Ready for market about ten days 
earlier than the Early Rose; tubers are uniformly larger 
and in average production of large crops it is not equaled 
by any of the extra early varieties, nor greatly surpassed 
in yield by any of the main crop varieties. The vine is 
very stocky and vigorous, not as liable to be affected 
with blight or to suffer by drought as most others. A 
dependable early variety. 
Certified Spaulding Rose 
(Medium early). Practically free from blight and rot. 
It yields well in all climates and is in one section of 
Florida being planted almost exclusively. In color resem¬ 
bles the Early Rose, shape similar, inclines to the oblong 
and is thicker. 
Irish Cobbler 
Dutch Bulbs 
Do you receive our fall catalog for Dutch bulbs? We 
list a full line of Tulips, Hyacinths and miscellaneous 
bulbs, also American grown Narcissus. If you do not 
receive this book, send us your name and address and 
we will gladly put you on our mailing list for our next 
fall catalog. 
MAINE-GROWN POTATOES ARE THE STANDARD 
[ 24 ] 
ROSS BROS. CO 
