28 L. P. GUNSON & CO., INC., ROCHESTER, N. Y. 
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. 8 
A new head lettuce suitable for long distance shipping. Plants light green 
in color, forming very firm, crisp, round heads.- A sure heading variety and 
in our tests to date has given very satisfactory results in several sections of 
New York State as an Iceberg type lettuce suitable for early or late planting 
on muck soil. Not recommended for mid-season planting. 
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. 
