74 
PERFEGRO BRAND 
HIGH QUALITY SEEDS 
High-Grade Fertilizers 
We have carefully considered the needs of our customers in making up our list of Fertilizers, and in the following list 
will be found brands with balanced analysis to meet the needs and requirements of the most exacting grower, whether he 
raises Vegetables for market or home use, grows Grain and Grass crops. 
We recommend the use of the higher grade Fertilizers, as experience has proven that the high-grade fertilizers are 
much more economical to use than the lower grade goods at cheaper prices, as the cost of bags, labor, freight, drayage, 
storage, and other items of expense is the same per ton on low-grade goods as on the higher grades. 
Prices of Fertilizers given below are the prices in effect at the time this catalog goes to press. All sub¬ 
ject to change. 
Uses of Main Plant Foods 
NITROGEN —Promotes leaf and stem growth; in¬ 
creases proportion stalk to fruit, and hastens 
blooming. An excessive amount delays maturity. 
PHOSPHORIC ACID —Stimulates early root forma¬ 
tion; gives vigorous start to plants; increases ra¬ 
tio fruit to stalk; improves quality of fruit and 
hastens maturity of crop. 
POTASH —Is important in sugar and starch forma¬ 
tion; gives stiffness to stalk helps plants to resist 
disease, and improves quality of fruit. 
Most soils furnish some of these elements and will 
keep plants alive but; often do not contain enough 
food to insure a proper and healthy development. 
Fertilizers must be used to supply a large part of 
the missing elements. 
Organic Fertilizers 
BONE MEAL —An excellent top dressing for lawns 
and an effective fertilizer for use in gardens, vine¬ 
yards and orchards. Can be used around shrubs 
and in flower beds without danger of burning the 
plants. Apply 800 pounds to 1000 pounds per acre. 
5 lbs., 25c; 10 lbs., 40c; 25 lbs., 90c; 100 lbs., $2225; 
500 lbs., $10.00, F. O. B. Denver. 
BLOOD AND BONE —A desirable fertilizer for crops, 
such as cabbage, cauliflower and corn, but not for 
root crops, such as beets, turnips, etc., unless used 
with some form of potash. For garden use apply 
at the rate of 300 to 500 pounds per acre. Most ex¬ 
cellent for potted plants. 5 lbs., 25c; 10 lbs., 40c; 25 
lbs., 90c; 50 lbs., $1.50 100 lbs., $2.75, F. O. B. Den¬ 
ver. 
RAW BONE—Analysis; Nitrogen 3%; Phosphate 22% 
—An excellent fertilizer for trees, shrubs, straw¬ 
berries as the food becomes available over a long¬ 
er period of time than mineral plant foods. 5 lbs., 
30c; 10 lbs., 50c; 25 lbs., $1.00; 50 lbs., $1.75; 100 
lbs., $3.25, F. O. B. Denver. 
DRIED BLOOD —This is used a great deal for indoor 
culture of flowering plants, being chiefly of nitro¬ 
gen content. For roses, carnations and chrysan¬ 
themums it is very valuable. Also used for mix¬ 
ing with soil and for liquid fertilizing. Lb., 10c; 
10 lbs., 75c; 25 lbs., $1.50; 50 lbs., $2.50; 100 lbs., 
$4.50, F. O. B. Denver. 
COTTON SEED MEAL —Exceedingly rich in potash 
and ammonia, making it excellent for use as a 
grass and grain fertilizer; for putting greens it is 
invaluable. 5 lbs., 25c; 10 lbs., 40c; 25 lbs., 90c; 50 
lbs., $1.65; 10O lbs., $3.00, F. O. B. Denver. 
TANKAGE! —Containing by-products from slaughter 
houses and contains blood, meat, bone that has 
been cooked, dried and ground. The analysis varies 
much, running from 5 to 9 ammonia and 5 to 15 
phosphoric acid. It contains no potash and for best 
results potash should be mixed with tankage. A 
quick acting organic. 5 lbs., 40c; 10 lbs., 60c; 25 
lbs., $1.25; 50 lbs., $2.00; 100 lbs., $3.50, F. O. B. 
Denver. 
Mineral Fertilizers 
ALUMINUM Sl'LPHATE —Used to make soil acid. 5 lbs., 
50c; 10 lbs., 80c; 25 lbs., $1.75; 50 lbs., $3.00; 100 lbs., 
5.25, F.O.B. Denver. 
SULPHATE OF AMMONIA —A nitrogenous plant stimulant, 
very quick in action, tending to make soil acid. In¬ 
creases leaf-growth. Much used on lawns, which it not 
only feeds, but weeds are discouraged; when top-dress¬ 
ing lawns apply 1 ounce per square yard or 350 pounds 
to the acre, but first mix with several times its bulk of 
soil or sand. 5 lbs., 35c; 10 lbs., 60c; 21 lbs., $1.15; 50 
lbs., $1.80; 100 lbs., $3.25, F. O. B. Denver. 
NITRATE OF SODA— A valuable fertilizer. Apply 150 to 
200 lbs. per acre, 1 lb. per 200 square feet but not 
until the plants are above ground. If used in liquid form, 
dilute two ounces to one gallon of water and apply 
twice a week. Do not let nitrate touch green growth or 
it will burn. 5 lbs., 40c; 10 lbs., 70c; 25 lbs., $1.25; 
50 lbs., $2.25; 100 lbs., $4.00, F. O. B. Denver. 
SULPHATE OF POTASH—1 lb., 15c; 5 lbs., 50c; 10 lbs., 
85c; 25 lbs., $1.50; 50 lbs., $2.50; 100 lbs., $4.50, F. O. B. 
Denver. 
MURIATE OF POTASH— For root crops. 1 lb., 15c; 5 lbs., 
50c; 10 lbs., 85c; 25 lbs., $1.50; 50 lbs., $2.50; 100 lbs., 
$4.00, F. O. B. Denver. 
Field Fertilizer 
SWIFT’S RED STEER 
MIXTURES 
Red Steer Fertilizers help 
you make more money—be¬ 
cause they give your crops a 
quick start, carry the crop to 
early maturity, make crops 
more resistant to disease, in¬ 
crease the yield and improve 
the quality of crops you grow. 
This makes more profit per 
acre. 
SWIFT’S RED STEER —Anal¬ 
ysis 4-12-4. 106-lb. bags, 
$2.75; 500-lb. lots, at $12.50; 
ton lots at $47.50, F. O. B. 
Denver. 
SWIFT’S RED STEER— Analysis 8-24-8. 100-lb. 
bags, $4.50; 500-lb. lots at $21.50; ton lots at $72.00, 
F. O. B. Denver. 
TRIPLE SUPERPHOSPHATE —Guaranteed 45 per 
cent available phosphoric acid. Triple Phosphate 
is recommended for all grain and grass crops, and 
vegetable crops. Apply at the rate of 125 to 250 
pounds to the acre. 125-lb. sack at $3.75 per sack; 
ton lots, $55.00, F. O. B. Denver. 
PULVERIZED SHEEP MANURE —An efficient ferti¬ 
lizer to use on lawns, in the garden, the perennial 
border, shrubbery beds, small fruit garden, flower 
beds, etc. It is safe and dependable. A natural 
plant food and not a chemical stimulant. Every 
amateur gardener can get results with sheep ma¬ 
nure. Price: 10 lbs., 25c; 25 lbs., 50c; 50 lbs., 75c; 
10O lbs., $1.25, F.O.B. Denver. 
LIME (Hydrated) —A very important article having 
numerous uses around the home, garden, farm and 
lawn. Is used as a reducer and in combination of 
many insecticides; for whitewash, deodorizing, 
sweetening sour soil for lawns, and clovers. 50-lb. 
bag, 75c, F. O. B. Denver. 
SULPHUR, AGRICULTURAL—Finely ground. This 
is now recognized as a successful fertilizer for 
alfalfa, corn, clover, etc. 5 lbs., 40c; 10 lbs., 60c; 
25 lbs., $1.00; 50 lbs., $1.50; 100 lbs., $2.75, F. O. B. 
Denver. 
MANGANESE SULFATE—As a general rule for gar¬ 
den crops, the application of 50 to 125 pounds per 
acre of Manganese Sulfate is advisable. Applica¬ 
tion should be made as a side dressing whenever 
possible to the plants. Where it is not possible, 
application at the time of planitng is satisfactory. 
Price: $10.00 per cwt., F. O. B. Denver. 
DEROBERT’S SOIL CONDITIONER —This is a by¬ 
product of Lime Sulphur. Apply at the rate of 
400 to 600 pounds per acre. Beneficial for hotbed 
plants, applying a five-inch pot to the top two 
inches of soil. A five-inch pot is sufficient for a 
4x6 sash. Further information on request. Price: 
$2.50 per cwt.; 100O lbs., $20.00 ; 2000 lbs., $35.00, 
F. O. B. Denver. 
House Plant Fertilizer 
STIM-U-PLANT—A fertilizer in tablet form. The 
tablets contain the essential plant foods in highly 
concentrated form and are, therefore, very con¬ 
venient for house use. 10 tabltes, 15c; 30 tablets, 
25c; 100 tablets, 75c; 1,000 tablets, $3.50, postpaid. 
VIGORO—It is a scientifically balanced prepared 
plant food, containing all the elements necessary. 
Leaflet free. 12-oz. carton, 10c; by mail, 15c. 
L 
FERTILIZERS 
TPAYS TO USE THEM 
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