860 EXPEKIMENT STATION RECORD. 



Large White Marrow and White Kidney for dry Ijeang; and Golden Wax, Dwarf 

 Black Wax, and Refugee Wax the best among the wax or yellow podded l)eans. 



Among the j^eas Tom Thumb, Little Gem, Telephone, and White Marrowfat are, 

 respectively, recommended in their season. 



Effect of acetylene gaslight on plant growth, F. W. Kane {New Ilumpslnre 

 Stu. Tech. Bill. 4, pp- S,figs. 7). — The effect of acetylene gaslight on the growth of a 

 number of vegetables in the greenhouse has been experimentally determined during 

 parts of two seasons. The light was obtained from a 10-lb. Acetogen generator hav- 

 ing a cluster of 8 burners and a large 20-in. reflector. In the first experiment the 

 lights were turned on April 4 and allowed to run each night until May 1. It 

 appeared to be more or less effective upon the growth of beets, spinach, and cress, 

 but its influence was less evident upon peas, tomatoes, and potatoes. Lettuce grown 

 under the light was a trifle taller and somewhat more tender. 



In the next experiment the lights were started in the greenhouse on January 1 

 and ran each night until Fel)ruary 15. This time the lettuce under the light grew 

 considerably taller and was more tender than that grown in darkness. Beans, 

 parsley, radishes, and coleus were also a little taller and somewhat more slender 

 under the light. Corn also grew taller under the light, but was more stocky and 

 had a better color in the dark. Fourteen heads of lettuce grown under the light 

 weighed but \ lb. more than 1-1 heads grown under like conditions exceptin 

 darkness. 



The general conclusions are drawn that "most plants tend toward a taller growth 

 under the light. It is doubtful whether this light can be used in the greenhouse 

 from an economic standpoint for growing plants alone. While its effect is marked in 

 the dark days of winter, little difference seems to be shown at other seasons of the 

 year, when there is more sunshine." 



The utilization of mineral matter by grafted plants, L. Daniel and V. 

 Thomas {Compt. Rend. Acad. Sci Paris, 135 {1902), No. 13, pp. 509-5K').—The 

 amount of a nutritive solution absorbed by 2 varieties of beans grown naturally and 

 grafted on each other reciprocally have l)een determined experimentally. The 

 results show that transpiration was much greater in the control plants than in the 

 grafted plants. The control plants were also much more injuriously affected by 

 chlorosis. The amount of nutritive material absorljed by the grafted plants was 

 slightly less than in the control plants. 



Radishes, parsnips, carrots, and salsify, E. S. Browx {Amev. Card., 24 {1903), 

 No. 427, pp. 135-137, Jig.^. 7). — An account of variety tests of radishes, parsnips, car- 

 rots, and salsify on American Gardening trial grounds in 1902, with descriptive notes 

 on the better varieties in each case. 



Cabbages and cauliflowers {Amer. Gard., 24 {1903), No. 429, pp. 1G6-1GS, Jigs. 

 4). — An account of the culture of cabbages and cauliflowers at the American (iarden- 

 ing trial grounds, with descriptit)ns of 10 varieties of cabbages and 5 of cauliflowers. 



Celery, E. S. Brown {Amer. Gard., 24 {1903), No. 428, pp. 152-154, jigs. J).— An 

 account of the growth of several varieties of celery in the American Gardening trial 

 grounds, with brief (lescri])tive and cultural notes on 15 varieties. 



The Dutch brined vegetable industry, R. F. Crawford {London: Bd. Agr., 

 1902, 2ip. 32, pis. 6, figs. S) . — An account is given of the culture and pickling of onions, 

 gherkins, and cauliflower in Holland, with notes on methods of cooperation among 

 Dutch market gardeners, and an account of Dutch market gardening schools. The 

 appendix contains the regulations governing some of the cooperative associations of 

 market gardeners in Holland and a complete syllabus of the lectures at the horti- 

 cultural and market garden school at Boskoop. 



Silverskin onions are the ones vised for pickling in Holland. These are grown on 

 clay soil about .3 ft. above the level of the dikes. About 40 tons of cow dung per acre 



