For November. lQ2:i 



277 



Bush Lima Bean 

 French Forcing Carrot 

 Davies Perfect Cucumber 

 Butternut Lettuce 

 Scarlet Giant Radish 

 Egyptian Beet 

 Rocky Ford Muskmelon 

 Bonny Best Tomato 

 Golden Heart Endive 



Baby's Breath 



Snapdragon 



Lavender African Daisy 



Impatiens 



Mignonette 



Wallflower 



Cineraria 



Begonia 



Aster 



Both tests were grown under identical cuiKlitions of 

 heat and moisture on opposite benches, with the excep- 

 tion that one group received the additional benefit of the 

 electric light while the other received no additional light 

 other than that provided by Nature. When the electric 

 light was turned on, an oil cloth curtain divided the one 

 group from the other. The light was switched on every 

 night at 8 P. M.. and automatically shut off at 1 A. M. 



Almost from the oivtset, according to J. A. Fiesler, of 

 Peter Henders(jn & Company, there was a marked dif- 

 ference noted in the germination of the seedlings under 

 the electric light. Germination was hastened in some cases 

 as in the beans, celery, lettuce, and endive among the veg- 

 etables and calendula, gypsophila, antirrhinum, mignonette 

 and wallflow-er among the flowers, to the extent of four 

 to twelve days, depending on the variety. 



The advantage gained with the advanced germinati(.)n 

 was maintained in every case through to the end of the 

 experiment which terminated at the end of six weeks. In 

 some cases there was no perceptible gain in growth, par- 



4-X Gypsophila Elegans. S^tnlight and Artificial Light. 



A-Y Gypsophila Elegans. Sunlight Only. 

 S-X Antirrhinum Giant. Snnlight and Artificial Light. 

 .S-)' .Intirrhinuni Giant. Sunlight Only. 



ticularly in the root crops including beet, carrot and 

 radish. 



That there is certain analogy between the radiant en- 

 ergy of sunlight and that of an incandescent electric light 

 was definitely established l>y the fact that the chlorophyll 

 in those plants which received the additional electric light 

 was more active. The foliage presented a richer, greener, 

 more turgid, and vigorous a])pearance than those that 

 were denied the advantage of the additional light. Also 

 in the case of the vine crops, cucumbers and muskmelon. 

 the stems of the plants were heavier and stockier than the 

 plants grown without' the electric light. In this e.xperi- 

 ment, the fact was estaljlished that all plants presenting a 

 large leaf surface are greatlv stimulated liy the additional 

 electric light, as in the case of the leaf crops, viz., lettuce 

 and endive. 



Preliminary tests on the forcing plants by the use of 

 artificial light were conducted by the Westinghouse Com- 

 pany at Columbia University, under the auspices of Prof. 

 Hugh Findlay of the Department of Agriculture of the 

 University. The results on such plants as Boston fern, 

 Calla lilies, rose geraniinns and others which are much in 



demand by florists, were extremely favorable. In almost 

 every case the plants grew taller, continued in bloom 

 longer and were sturdier than those that did not receive 

 the benefit of the artificial light. 



PI:utr}:nif-lis tilt' I t'l'ioduci-d tl/rou^tt conrtt^sy of tljc il'cstinghouse Lamp Co. 



5IXTH WEEK 



6-X Arctotis Grandis. Sunlight and Artificial Light. 



6-¥ Arctotis Grandis. Sunlight Only. 



8-X Mignonette-Rcd Goliath. Sunlight and Artificial Light. 



8-}' Mignoncttc-Rcd Goliath. Sunlight Only. 



Two Westinghouse 1 10-volt 2-horsepower farm light- 

 ing plants were used in the Henderson experiments to 

 generate power, in order to I)ring these tests within the 

 reach of communities where central station power is not 

 available, as well as those where current can lie ])urchased. 



GARDEN DESIGN 



(Continued t>'oni page 275) 



surroundings and, with the exception of, it may be, a little 

 white, it should be kept to blues. Blue flowers with green 

 turf and gray stone-walling are always beautiful together. 

 As in Eastern embroidery, one mav, in parts of the 

 principal borders, work up to a riot of the richest colors. 

 Dee|j l)lue and purple Delphiniums, orange Lilies, crimson 

 I'entstemons and Hollyhocks (crimsons are generally safe, 

 but beware of scarlet ! ), apricot and yellow Day Lilies, with 

 always plenty of green foliage, and the bronzy leafage 

 of purple-leaved Plums and Pseonies will make a brave 

 show. One must not forget that color is to be obtained 

 not only from flowers, but that numbers of trees, shrubs 

 and plants are invaluable for the coloring of their foliage. 



d-A Cucumbcr-Davics Perfect. Sunlight and Artificial Light. 



6-B Cucumbcr-Davics Perfect. Sunlight Only. 



7-.4 Lettuce-Butternut. Sunlight and .4rtificial Light. 



7-B Lettuce-Butternut. Sunlight Onlv. 



