Lettuce 
Mountain Iceberg 415 (New) 
ICEBERG AND NEW YORK VARIETIES 
Culture: Conditions necessary to grow good head lettuce 
are rich soil, plenty of moisture, and steady growth from 
the time the seeds are planted until the heads are ready to 
use. A check in growth from lack of nourishment, mois¬ 
ture or adverse conditions, usually results in total or par¬ 
tial crop failure. 
After the soil is thoroughly plowed and prepared, drill 
in rows on a compact seed bed two feet apart, planting 
seed one-half to one inch deep, and from one-half to one 
pound of seed to the acre. Two weeks after it comes up 
it is usually large enough to be thinned to single plants 
to a distance of at least 14 inches. Keep crop clean of 
weeds at all times. Cultivate thoroughly but not deep. 
Ground should not become dry but care must be used in 
irrigating. When weather is cold use water very sparingly 
as crop can be stunted by too much water. If the weather 
is inclined to be a little too warm, it is possible at times 
to save the crop by an abundance of water. This crop 
requires from 75 to 97 days for maturity from seeding 
time to harvest. 
NEW VARIETIES OF LETTUCE 
We doubt if any variety of vegetables has had the per¬ 
sistent and intense breeding as has been done with the 
New York and Iceberg types of lettuce. In fact, the past 
few years the development and introduction of new va¬ 
rieties has been so fast that but few seed houses or planters 
have been able to keep up with the progress. 
We have devoted a large acreage in the mountains ot 
Colorado—on our farm south of Denver; also in Arizona 
and California, to the trials and development of n^ va¬ 
rieties and strains, often as many as twenty different 
varieties grow side by side in one field. We do this work 
not only for ourselves but for other large dealers in Seed 
as well as the Department of Agriculture. 
Each year new varieties with outstanding merit have 
been introduced. The latest introduction of merit has been 
No. 315 and Imperial 815. We are very much enthused 
with both. In our trials they have proven better than 
No. 12 and No. 515. 
FOR ARIZONA 
W^e found I-H Improved 847 and 152 outstanding for 
planting crops to mature in the fall, November and De- 
CGinbGr* 
Early spring crop, March and early April, Imperial D. 
and No. 615. 
For spring crops, 847 and 152, but for late spring crop 
best of all Nos. 415 and 315. 
FOR IMPERIAL VALLEY, CALIFORNIA 
We recommend Imperial D, No. 13, and Imperial 615. 
FOR SALINAS VALLEY. CALIFORNIA 
We recommend Nos. 152, 415, 847. 
FOR COLORADO 
Vicinity of Denver: For starting in beds and trans¬ 
planting to fields No. 415 we rank first then No. 12. For 
earlv summer (June). No. 815 first then 315 and 415. For 
Julv 315 and 415. Fall crop 815 and 615. For mam crop 
in mountains of Colorado 315, 415 and 815. See descriptions. 
OUR TRIALS HAVE PROVED THE TOLLCIWING 
LATE INTRODUCTIONS HAVE EXCEPTIONAL 
MERIT AND ARE FAR AHEAD OF ANY OTHER VA¬ 
RIETIES SO FAR OFFERED. 
Imperial No. 815. A very sturdy, robust variety with 
large heavy leaves of very dark green color. This strain 
is more resistant to blight and root rot than any other 
variety we have seen and not as susceptible^ to tipburn 
as many other varieties. It produces good size, fine ap¬ 
pearing heads and the percentage of heads that can be 
cut from a field comes nearer to our I-H Improved than 
any other variety. Pkt., 10c; oz., 25c; i/4 lb., 80c; Vc lb., 
$1.50; lb., $2.40; 10 lbs., $22.50. 
Improved Iceberg Nos. 315 and 415. These two new in¬ 
troductions are almost identical except, under identical 
conditions 315 will produce a larger head, which is often 
very desirable, in certain soils and under certain con¬ 
ditions. Both were especially bred to a variety that 
would produce fine quality well shaped solid heads dur¬ 
ing the warmer weather and have the least tipburn 
and slime. Our trials the past two years in the vicinity 
of Denver, several places in the mountains as well as 
in Arizona, have proved these splendid varieties. We 
especially recommend these varieties in place of No.^ 12 
and 515 because they are surer headers, better appearing 
heads, less ribby, less slime and tipburn, and a larger 
per cent of marketable heads. Price: 315 Pkt., 10c; oz., 
20c; 1/4 lb., 80c; 1/2 lb., $1-50; lb., $2.50; 5 lbs., $11.00. 
Price: No. 415 Pkt., 10c; oz., 20c; 1/4 lb., 70c; Vss lb., 
$1.25; lb., $2.25; 5 lbs., $10.00. 
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