732 EXPERIMENT STATION RECORD. 



Fertilizer tests of sugar beets in 1909, J. Bela (KiscrJct. Kozlem., IS 

 (1910), No. 1, pp. 10-'t-116). — At the Magyarovar Plant Growing Experiment 

 Station two series of experiments were conducted on plats of 1,600 square 

 klafters (57,600 square feet) each. In the first series, yields from unfertilized 

 plats were compared with those following applications of 300 kg. of superphos- 

 phate per plat, while in the second series, applications of 200 kg. of superphos- 

 phate with and without SO kg. of Chile saltjieter were tested. 



The application of 300 kg. sui^erpliosphate proved profitable in 44.5 per cent 

 of the tests but showed no constant relation to the sugar content. On 17 out of 

 37 farms, applications of 200 kg. of superphosphate proved profitable but no 

 profit in any case followed the addition of SO kg. of Chile saltpeter to the appli- 

 cation. 



Variety tests of sugar beets in 1909, J. Bela (Kis&rlct. Kozlem., 13 {WW), 

 No. 2, pp. 127-178). — This article gives a fuil report of the results obtained 

 from each of a large number of varieties of sugar beets tested in 1909. 



The beet sugar industry, W. Maxwell {Dcpt. Agr. Victoria Bui. 28, pp. 39, 

 figs. 19). — The status of the beet sugar industry in the Maftra district is out- 

 lined and recommendations made for its improvement. Cultural, manufactur- 

 ing, and economic processes in California are reviewed and a preliminary report 

 on some Maffra experiments are given. 



Studies on climate and crops. — II, The yield of wheat in the United States 

 and in Russia during the years 1891 to 1900, H. Arctowski (BuI. Amer. 

 Gcogi: 8oc., .'i2 [1910), No. 7, pp. .'i81-'i9,j, figs. 11). — The autlior reviews briefly 

 the yield of wheat in the United States and Russia during 1S91-1900, noting 

 the variations in yield in each country. He concludes that if variations in har- 

 vests during a given year are such that low yields in one country are balanced 

 by excellent ones in another " that the centers of compensation are not always 

 to be observed in the same region," and " that to meet the nee<ls of the interna- 

 tional market there may be exceptional yields of insutficient compensation." 



A series of maps shows the regions of high and low yields in the United States 

 for the period under discussion. From a study of these maps the author notes 

 " a decrease in extent and a displacement in the opposite directions to the 

 hands of a clock " and the same movement on maps of the annual departures of 

 temperature. 



Common weeds of the farm and garden, H. C. Long and J. Percival (Lon- 

 don, 1910, pp. XVIII +.'i51, figs. 106). — Weeds are treated in their relations to 

 live stock and farm crops. 



A classification of weetls is given, their methods of distribution stated, and 

 preventive and remedial measures outlined. Special chapters are devoted to 

 weeds of arable lands, grass lands, i)onds, rivers, ditches, lawns, and drives, and 

 to seed testing. A full bibliography is followed by appendixes containing illus- 

 trations of weed seeds, lists of weeds and poisonous plants, a brief summmary 

 of the legislation enforcing the destruction of noxious weeds in each of the 

 chief agricultural countries of the world, and a statement of the value of each 

 of a small number of birds for destroying weed seeds. 



Charlock and white radish, G. ScitULTZ (Arl). Dciit. Landw. Oesell., 1909, 

 No. 158, pp. 78, 2)ls. 5, figs. 29). — This publication deals with the natural history 

 and botany of charlock (Sinajns ari'cnsis) and white radish (Rdplidiius raphan- 

 istrum). Their methods of dissemination are described and the duration of 

 their vitality discussed. Methods of preventing their appearance are stated 

 and their eradication by various means, including spraying with iron sulphate, » 

 discussed. 



Quack grass eradication, P. B. Crane (St. Paul, Minn., 1910, pp. IL'i, pis. 2, 

 figs. 21). — The author discusses quack grass as hay and as a weed and outlines 



