532 EXPERIMENT STATION RECORD. 



No. 93, pp. 3133, 3134; ahs. in Internat. Inst. Agr. [Rome], Mo. Bui. Agr. Intel, 

 and Plant Diseases, 5 (19 W, No. 3, pp. 351, 352).— It is noted that the selected 

 forms of Hungarian wheat from the same variety differ not only in their 

 development and in the morphological peculiarities of the plants, but also in 

 the character of the kernels, and that these characters breed true. 



Seeding' wheat in Oklahoma, A. H. Wbight (Oklahoma Sta. Circ. 32 (1914), 

 pp. 3-8). — Cultural methods are here described for producing wheat under 

 Oklahoma conditions. 



Results of seed inspection, 1913, J. P. Helyab (New Jersey Stas. Bui. 266 

 (1914), pp. 3-39). — This bulletin gives results of the inspection of seeds for 

 1913, with comments and some directions for sampling and sending samples of 

 seeds to be inspected, and gives the text of the New Jersey seed law. 



Combating weeds, with special reference to calcium cyanamid and kainit, 

 Opitz (Ztschr. Landw. Kammer Schlesien, 18 (1914), No. I4, pp. 617-622). — 

 Results here noted show iron sulphate, sulphuric acid solution, and some 

 proprietary preparations to have been satisfactory. Those obtained with 

 calcium cyanamid and kainit, used at the rate of 100 and 600 kg. per hectare, 

 respectively, were unsatisfactory. 



Weeds, R. H. Biffen (Jour. Roy. Agr. 80c. England, 74 (1913), pp. 376- 

 579). — Notes on and methods of eradication of the following weeds are here 

 presented: Spcrgula arvcnsis. Polygonum persicaria, Orohanche minor, and 

 dodder. 



HORTICULTURE. 



Manual of horticulture, G. Bassotti ( Vademeoum do Horticultor. Sao Paulo, 

 Brazil, 1913, pp. XII +556, figs. 267).— Fart 1 of this manual deals with the 

 general principles of horticulture. Part 2 takes up in alphabetical arrange- 

 ment the botany, culture, and uses of all of the more important vegetables, 

 pot hei-bs, etc. A similar brief treatment of the pineapple is appended. 



Everyman's garden every week, C. A. Selden (New York, 1914, pp- XIV -{- 

 338). — A popular treatise on kitchen and ornamental gardening. Aside from 

 the general considerations relative to preparation of the soil, fertilizing, pro- 

 tection against pests, etc., the chapters of the book are placed in chronological 

 order with reference to the various garden operations for the year. These 

 operations are arranged for the most part under the weeks in which they best 

 may be done. 



The gardener's pocket manual, F. F. Rockwell (New York, 1914, PP- 90, 

 figs. 33). — ^A manual of information and data covering various operations in 

 connection with the flower garden, the vegetable garden, and the home grounds 

 in general. 



The carbon nutrition of horticultural plants, H. Fischer (Gartenflora, 

 63 (1914), No. 6, pp. 125-132). — In continuation of previous investigations rela- 

 tive to the value of carbonic acid gas as a plant nutrient (E. S. R., 28, p. 837), 

 the author here describes experiments conducted in a greenhouse with various 

 horticultural plants. Although working conditions were at times unfavorable, 

 the results as a whole tend to confirm the author's previous conclusion that the 

 development of both foliage and flowers is stimulated by an excess of cai-bonic 

 acid in the air. The yield of tomatoes was practically doubled by the car- 

 bonic acid treatment, and the yield of cucumbers was increased about 12.5 

 per cent. In the case of treated and untreated cuttings of fuchsia plants, 

 practically no difference was noted in the time of rooting, but the treated 

 I)lants came into bloom quicker, and the blooming period was prolonged for 

 several weeks. A number of other plans gave more or less successful results 

 when grown with an excess of carbonic acid in the air. 



