READ THESE IMPORTANT FACTS 
before you buy 
SYNTHETIC SOIL CONDITIONERS 
Now—after years of research—tested by America’s greatest 
Agricultural University—if’s ready. ay 
The most effective permanent soil conditioner ever developed 
STERN’S LECTRO-LOAM 
New Permanent Soil Conditioner 
Before you invest in any soil conditioner you 
should ask these important questions: 
How will Stern’s Lectro-Loam make my 
garden more beautiful? 
Lectro-Loam transforms hard, gummy clay soils into 
spongy, crumb-like topsoil—gives you a soil that produces 
bigger, more beautiful, more fruitful plants. 
Stern’s Lectro-Loam benefits your gar- 
den these 12 ways— 
Lectro-Loam is entirely different! It changes the basic structure 
of the soil—not just the texture! And the soil stays improved. 
Promotes better “aeration”—allows vitally needed air to reach 
the roots of your plants. 
Encourages root development; roots grow to maximum size in 
loose light soils. 
Increases water absorption. Treated soils absorb 3 to 4 times 
more moisture without becoming muddy. Plants get fuller bene- 
fit from rains. 
Increases fertility—yet Lectro-Loam is not a plant food. Allows 
plants to make better use of fertilizer. Soils absorb and hold 
more plant food. 
Resists wash-outs and erosion. Grass grows on steep hillsides 
because treated soil won’t wash away. 
Resists surface caking. Treated soils do not harden, crack and 
cake even during hot dry weather. 
Easier cultivation. Helps with weed control. The surface of your 
garden soil remains loose and crumbly, easy to work. 
Improves seed germination. Tiny new roots easily penetrate 
treated soil. Expensive seed (especially grass) is not blown away 
—or washed away. 
Spring gardening starts earlier. Treated soils may be worked 
earlier in spring, while untreated soils are wet and gummy. 
No lumpy soil. Produces smaller “aggregates”—soils maintain 
fine “seed-bed” condition. 
Increases plant beauty. Plants grow faster and larger in perfect 
soil conditions. Field tests reveal huge increases in corn, oats, 
carrot and beet crops. 
How to use Lectro-Loam when planting 
Simply prepare hole in usual manner. Mix a very small 
amount of Lectro-Loam thoroughly in soil at the bot- 
tom of the hole and in soil to be used around roots. 
Get amazing results—roots develop to maximum size, 
plants thrive even in poorest soil. See easy directions 
on package. 
[25] 
How long will these benefits last? 
In other words—what’s the “water stability rating?” Will 
the treated soil pack-down and return to its original con- 
dition after a year or two of heavy rain? 
Here’s the answer supplied by America’s greatest Agri- 
cultural University. 
WATER STABILITY RATINGS 
(Soil Aggregate Stability Tests) 
RELATIVE RATING 
Stern’s Lectro-Loam 100 (No Deterioration) 
Advertised Brand B 
aul au 
THESE ARE ‘‘WET SCREENING TESTS” measuring stable clay aggregates of 
0.5 millimeters, developed by leading university soils department. 
Study this important chart. It means that Stern’s Lectro- 
Loam-treated soils will not break down, even during long 
years of heavy rainfall. Notice other brands provide only 
5% to 35% as much lasting power. Don’t waste time, work 
and money on less effective soil conditioners. 
Stern’s Lectro-Loam is non-toxic. Contains no caustic 
chemicals to injure plants. 
STERN’S LECTRO-LOAM 
Permanent Soil Conditioner 
Lectro-Loam is a dry fine powder that is sprinkled on top 
of the soil, worked in to the desired depth by raking or by 
hand or machine cultivation, then watered. Complete, 
simple instructions on every package. 
12 Ibs. . « $2.50 (treats 60 square feet,* 3 inches deep) 
3 Ibs. . « « 94.75 (treats 120 square feet,* 3 inches deep) 
6 Ibs. . . « $9.50 (treats 240 square feet,* 3 inches deep) 
12 Ibs. . . $18.00 (treats 480 square feet,* 3 inches deep) 
ALL PRICES POSTPAID 
*Maximum strength where required. Specified for worst clay conditions. 
Where soil is moderately good, coverage figures may be doubled. 
