12 TETHER SEED CO. 
LETTUCE 
1 oz. will sow 150 ft. row, 1 1/2 to 3 Ibs. per acre. 
ICEBERG HEADING VARIETIES 
1 oz. 1/4 Ib. 1 Ib. 
Cornell or Imperial 456 .............. $ .60 $1.80 $6.00 
Developed by U. S. Department of Agriculture and Cornell Ex- 
periment Station from same breeding material as Great Lakes. Frame 
and head slightly smaller than Great Lakes, solid, medium green, 
rather prominent ribs. Has proved a very sure header in the 
East. Particularly adapted for growing on muck soils. Resistant 
to tip burn and early bolting. Used locally for field sowing and 
late transplanting. 82 days. 
GreateVakesmrererr ern ur en ie ok -60: 1.75 5.50 
Developed at Michigan State College from a cross made by the 
U. S. Department of Agriculture. One of the most satisfactory 
strains of the Iceberg types for the East. Plant large and vigor- 
ous; head large, firm, outer leaves very dark green blistered, well- 
folded with tendency to heavy mid-rib. Slow-bolting, shows con- 
siderable resistance to tip burn and stands up well in hot weather. 
82 days. 
Imperiale Sipe eer hes vues cies 0 1.50 5.00 
Developed from Imperial No. 152 for eastern conditions. Foliage 
dark green, head leaves long and well-wrapped forming firm, slight- 
ly flattened heads, excellent quality, weighing 1 1/2 to 2 pounds. 
Somewhat resistant to tip burn and stands up well in hot weather. 
Very good for early transplanting. 8&0 days. 
Imperial 847 (Black Seeded Iceberg) ...  .50 1.50 5.00 
Black seeded. Originally developed as a brown-blight-resistant va- 
riety for California, now popular in East and South as a market 
garden and shipping variety. Leaves smooth, thick, medium light 
green. Heads medium large, crisp, round, well-folded and firm. 
83 days. 
Pennlakemeeredece tay terete tie: enn ane -60 1.80 6.00 
Developed at Pennsylvania Experiment Station from a cross of 
Great Lakes and Imperial 847. Head medium large and compact; 
outer leaves dark green slightly crumpled, well folded less finely 
eut edges than Great Lakes; comparatively free from objection- 
able ribbiness but equally solid and resistant to tip burn. Interior 
crisp and firm. Appears to be a very good variety for early and 
and late spring planting. 83 days. 
Progress (2428) ...... SERRE ce eee -60 1.80 6.00 
Developed by the U. S. Department of Agriculture and the New 
Jersey Experiment Staticn from a cross of Imperial 44 with an 
unnamed hybird seedling. Heads are early medium size, compact, 
dark green, thick-leaved, heavily savoyed with edges more cut and 
waved than Imperial 44. It matures same time as Imperial 44 
but is more resistant to tip burn. Slow bolting, good flavor and 
excellent quality. 80 days. 
Premier or Early Great Lakes ...... >. 00 1.80 6.00 
Developed from an individual plant selection of Great Lakes at 
Pennsylvania State College. The single plant was selected for 
earliness, smoothness, lack of ribbiness and uniformity of heading. 
Heads solid, practically round, up to 7 inches in diameter and two 
pounds in weight. Slow to bolt and very resistant to tip burn. 
7 to 10 days earlier than regular Great Lakes. 75 days. 
New yY orkgl Waeoogeee i. cen Sl cenoen os eed) 1.50 5.00 
A very early New York type, of compact growth, medium size. 
with small core and showing remarkable resistance to tip burn. 
Its chief claim for wide favor seems to be its extreme earliness 
in the crisp leaf class. Compared with Imperial 44 it is a week 
rage smaller, of better quality, more solid, somewhat quicker 
0 bolt. 
Lettuce continued next page 
10 Ibs. 
$58.00 
53.00 
48.00 
48.00 
58.00 
58.00 
58.00 
48.00 
