HORTICULTUEE. 235 



mercial value are Bas.rla longifolia, B. butyracea, B. mottleyana, and I'enta- 

 desma butyracea. 



On the variations in weight of stored seeds, A. Mobettini (Staz. Sper. Agr. 

 Ital, 46 (1913), No. 7-8, pp. 499-524, pis. 2).— The author reports the results 

 of studies on the weight of grain as affected by insects, rats, birds, respiration, 

 oxidation, and hygroscopic moisture. 



It Is noted that the weight of wheat with less than 10 per cent of moisture 

 at the time it is placed in storage may oscillate from 18 to 25 per cent during 

 the autumn and spring, but that if it contains from 11 to 12.5 per cent of 

 moisture there will be little variation and if it contains over 12.5 per cent of 

 moisture it will decrease in weight toward spring. With beans it is noted 

 that the increase in weight varied as much as 35 per cent. Lupines showed 

 some increase in hygroscopic power, while corn on the ear varied about 10 

 per cent. The variations, it is observed, fluctuated according to climate and 

 time of storage, but these results applied in the district of Umbria. 



OxaUs on tea estates (Planters' Chron., 9 (1914), ^^o. 1, p. 4)- — This notes 

 the appearance of Oxalis violacca as a troublesome weed in some parts of 

 Nilgiri Hills, British India. 



A cover crop as a factor in restricting- certain weed seeds, Zade (Fit filing's 

 Landic. Ztg., 62 (1913), No. 22, pp. 777-785).— This is a discussion of the in- 

 fluence of shading and crowding by oats, barley, wheat, peas, vetch, turnips, 

 and mustard on the germination and growth of weeds, and gives results of 

 experiments in which small plats of rye and wheat were seeded with 500 

 seeds each of wild mustard and wild oats. 



Results in the spring showeii that in a thick stand of rye 0.8 per cent of 

 wild oats had germinated, but no mustard. In a thin stand of rye the corre- 

 sponding percentages were 15 and 17.9, in a thick stand of wheat 6.6 and 10, 

 in a thin stand of wheat 39.8 and 40.6, and on fallow land 48 and 42.8 per cent. 



HORTICULTTJUE. 



Colonial plants, H. Jumelle (Les Cultures Coloniales. Paris, 2. rev. ed.: 

 Plantes a F^cule et C^>^ales, vol. 1, 1912, pp. 108, figs. 35; Legumes et Fruits, 

 vol. 2, 1913, pp. 122, figs. 33; Plantes d Sucre, Caf4, Cacao, TM, Mat6, vol. 3, 

 191S, pp. 127, figs. 42; Plantes a Condiments et Plantes MMicinales, vol. 4* 

 1914, pp. 120, figs. 30). — The earlier two-volume edition of this work (E. S. R., 

 13, p. 1043), which deals with the culture, preparation, and utilization of 

 tropical and subtropical plants, has been revised and redivided into 8 parts. 

 Of those here noted, part 1 deals with starch plants and cereals, 2 with 

 vegetables and fruits, 3 with sugar plants, coffee, cacao, tea, and mat6, and 

 4 with condimental and medicinal plants. 



Najnes of the field and market garden crops and of the principal fruit 

 and timber trees of the United Provinces of Agra and Oudh (Dept. Lo/nd 

 Rec. and Agr. United Prov. Agra and Oudh, Agr. Scr., Bui. 30 (1913), pp. 95). — 

 This comprises a list of synonyms of the field and market garden crops and 

 of the principal fruit and timber trees of the United Provinces of Agra and 

 Oudh. The vernacular names have been classified under six different divi- 

 sions, with regard to the different dialects prevalent in them. 



Recent observations on the value of carbon dioxid in organic fertilizers, 

 E. Reinau and R. Klein (Gartenwelt, 18 (1914), No. 16, pp. 214-218) .—The 

 authors review the literature dealing with the assimilation of carbonic acid 

 from organic manures and from the air and present data secured in some 

 tests conducted in a commercial sized greenhouse. 



The following plants were grown in two compartments, containing 40 cubic 

 meters of space (1,412.6 cu. ft.) each: Aspidistra, philodendron, nephrolepis, 



