THE HORTICULTURAL SOCIETY OF NEW YORK 

 PLANTS USED 



Number of Pots 



i-A English Ivy (Hedera helix) 

 English Ivy (Hedera helix) 

 Boston Fern (Nephrolepis) 

 Boston Fern (Bostoniensis) 

 Calla-lilies (Calla Aethiopica) 

 Calla-lilies (Calla Aethiopica) 

 Wandering Jew (Tradescantia fuscada) 

 Wandering Jew (Tradescantia fuscada) 

 Geranium (Apple- Scented) 

 Geranium (Apple-Scented) 

 Coleus (Large Leaf Variegated) 

 Coleus (Large Leaf Variegated) 

 Coleus (Small Leaf Variegated) 

 Coleus (Small Leaf Variegated) 

 Marguerites (Anthemis nobilis) 

 Marguerites (Anthemis nobilis) 

 Geranium (S. A. Nutt) 

 Geranium (S. A. Nutt) 



Vegetable Seed Planted in 4-inch Pots 

 Beans — Stringless Green Pod 

 Peas— First of All 

 Sugar Corn — Golden Bantam 



Vegetable Seed in Flats 

 Cabbage — Early Jersey Wakefield 

 Tomatoes — Chalks Early Jewel 

 Celery — Golden Self Blanching 

 Celery — White Plume 

 Tomatoes — ^Bonnie Best 

 Lettuce — California Cream Butter 

 Onion — Yellow Globe Danvers 



SUMMARY OF TESTS AT COLUMBIA UNIVERSITY 



The results obtained from this experiment shows, 



I — The use of the tungsten gas-filled Mazda C lamp has a bene- 

 ficial effect on the growth of flowering plants started from cuttings. 



2 — The use of artificial illumination plus sunlight forces a more 

 rapid growth of vegetable seedlings than similar seedlings under 

 sunlight only. 



3 — The use of artificial light plus sunlight does not produce a 

 weak, spindly growth of flowering and vegetable plants providing 

 each plant is given suf^cient space for normal growth, the proper 

 soil, moisture and temperature conditions. 



4 — Flowering plants under artificial light bloomed approxi- 

 mately 8 days earlier than plants grown under sunlight only. 



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