TETHER SEED CO. 13 
Let TUCE 
1 oz. will sow 150 ft. row, 1 1/2 to 8 lbs. per acre. 
ICEBERG HEADING VARIETIES 
oz. 64)lb. © 1*Ib; > 10: ibs. 
Cornell or Imperial 456 ....... eee a jek $ 60 $1.75 $6.00 $58.00 
Developed by U. S. Department of Agriculture and Cornell 
Experiment 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 
Hast. Particularly adapted for growing on muck soils. Resistant 
to tip-burn and early bolting. Used locally for field sowing and 
late transplanting. S2 days. 
Great Lakes ............ Sie ae yee se el HY, Oe, 60 1.75 5.50 53.00 
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 
considerable resstance to tip burn and stands up well in hot 
weather. 82 days. 
Imperial) 44 ise. skescestsceves seh ey ator rene oly 35 1.00 3.50 33.00 
Developed from Imperial No. 152 for eastern conditions. Foliage 
dark green, head leaves long and well-wrapped forming firm, 
slightly 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. 80 days. 
Imperial 847 (Black Seeded Iceberg)... .35 1.00 3.50 33.00 
Black seeded. Originally developed as a brown-blight-resistant var- 
iety 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. 
Pennlake ....... elon A Tae “SERS Se ee Te 60 1.75 6.00 58.00 
Developed at Pennsyivania 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 objectionable 
ribbiness but equally solid and resistant to tip burn. Interior crisp 
and firm. Appears to be a very good variety for early and late 
spring planting. 88 days. ; 
Progress (2428) .........icccccsescsees Selenite ae .... e00- 1.75 6.00 58.00 
Developed by the U. S. Department of Agriculture and the New 
Jersey Experiment Station from a cross of Imperial 44 with an 
unnamed hybrid 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. .............. . 60 1.75 6.00 58.00 
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. 
Tfeads 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 York PW'SS .................. ach Psi vbraery ety 39 1.00 3.50 33.00 
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 earlier, smaller, 
of better quality, more solid, somewhat quicker to bolt. 
Lettuce continued next page 
