L. P. GUNSON & CO., ROCHESTER, N. Y. 27 
LET TUCE— (Continued) 
HEADING VARIETIES “ICEBERG TYPES’? 

IMPERIAL No. 44 
CAUTION—All Iceberg types of lettuce are affected by conditions. Minor 
variations in temperature, nutrition, and moisture at critical periods may cause a 
particular strain to head well or poorly. Consequently, it is difficult to produce a 
strain well adapted to a wide range of conditions. The varieties we offer have been 
tried under the variable weather of Eastern States. It seems too great a risk to 
make large plantings of any one variety at one time. Successful growers make 
successive plantings. 
GREAT LAKES 
A cross of Brittle Ice with Imperial 615. With one of the same parents as 
Imperial 456 it has much the same appearance and is also recommended for 
midsummer plantings. 
IMPERIAL NO. 44 
Excelled all other varieties of Iceberg types in New York State trials. Recom- 
mended for early planting for it has given a greater percentage of marketable 
heads than other varieties. : 
IMPERIAL 456 
A cross of Brittle Ice with Imperial 152. This lettuce is more resistant to 
tipburn than older strains of Iceberg, therefore better adapted for mid-summer 
conditions in this State and similar sections. Due to the Brittle Ice parent, it 
is lighter in color than other strains of Imperial. This new strain is meeting 
with favor and fills a needed space in plantings of Iceberg. 
LOOSE LEAVED VARIETIES 
BLACK SEEDED SIMPSON 
One of the best for sowing outdoors where an exceedingly tender leaf is de- 
sired and for those markets which demand a very large, loose clustering sort 
of a light yellowish green color. Leaves ruffled and blistered and even the 
large outer ones are very tender. Uniformly attractive and remains of excel- 
lent quality a very long time. 
