CATALOGUE AND PRICE LIST. 
O. & W. Top Dressing and Grass Fertilizer 
A complete fertilizer with all the essential elements for rapid and luxurious growth, 
carrying both soluble salts and organic material, it is suitable both for top dressing 
or permanent seeding down mixture. 
( 8% Nitrogen. 
GUARANTEED ANALYSIS { 0 % Available Phosphoric Acid. 
I 6 ( /c Actual Potash. 
O. & W. High Grade Potato and 
Vegetable Fertilizer 
This is a concentrated mixture running high in analysis in every ingredient, and 
as a formula, is extensively used in the potato growing sections of Maine. To produce 
large crops of potatoes you must feed heavily of Potash. This was thoroughly proven 
during the war, as even when Potash was extremely high and scarce some of the Maine 
potato growers paid the price for this ingredient and were well repaid by increased crop. 
GUARANTEED ANALYSIS 
’ 5% Nitrogen. 
8% Available Phosphoric Acid. 
7% Actual Potash. 
O. & W. Potato and General Purpose 
Fertilizer 
This formula should be used in growing potatoes. The 4% Nitrogen content 
makes it practically the same as our 5-(ammonia) 8-7 of'previous years and most 
agronomists agree that this is a proper balance for the potato crop. This formula 
is also extensively used in market gardening. 
f4 c /c Nitrogen. 
GUARANTEED ANALYSIS^ 8 % Available Phosphoric Acid. 
[ 7% Actual Potash 
O. & W. Potato and General Purpose 
Organic 4-8-7 
This formula has a large proportion 'of the nitrogen derived from organic 
sources. We believe for potatoes and such crops as require the entire growing 
season to arrive at maturity, this organic form of nitrogen is very essential as it 
does not leach away with moisture but decomposes freeing the nitrogen slowly, 
carrying through and maturing the crop. If we can increase the yield, the slight 
extra cost is more than justified. 
O. & W. Double Strength Fertilizer 
A highly concentrated formula used principally in growing potatoes. Should be 
used at .the rate of 1,000 to 1,200 lbs. per acre, being very careful that fertilizer does 
not come in contact with seed. 
f 8 % Nitrogen. 
GUARANTEED ANALYSIS < 16% Available Phosphoric Acid. 
[14 °/c Actual Potash. 
