FIELD CROPS. 955 



are given for making a "simple sirup tester," an instrument for determining the 

 variations in density or the thickness of sirup for the use of ordinary workmen. 



The necessity of practical field tests and the methods of conducting them, 

 Loc.es and Vibrans (Jahrb. Dent. Landw. Gesell., 18 {1898), pp. 65-74). — A paper read 

 before the German Agricultural Society. 



Beet culture and beet seed production, P. Doerntling (Bl. Zuckerriibenbau, 6 

 (1899), No. 4, pp.57, 58).— A brief note referring to some of the results of interest in 

 this connection obtained by several investigators. 



Time of harvesting beet seed, Nobbe (Jahrb. Dent. Landw. Gesell., 18 (1S9S), pp. 

 189-197, fig. 1).— This paper discusses the practices of a number of prominent beet 

 seed growers and gives the results of germination experiments with beet seed car- 

 ried on in 1891) and 1897. The author concludes from the results that under favor- 

 able weather conditions it is best to allow the seed to ripen in the field. 



The importance of growing cereals and catch crops, Stieger ( Ftihling's Landw. 

 Ztg.,47 (1898), No. 20, pp. 762-764).— The importance of cereals and catch crops in 

 'rotations is discussed. 



Cotton and its by-product (Jour. Jamaica Agr. Soc, 3 (1899), No. 3, pp. 133-137).— 

 A popular article on the cultivation and uses of cotton. 



Flax culture in the Russian Baltic provinces and in Germany, Schindler 

 (Jahrb. Dent. Landw. (iesell., 13 (189S), pp. 177-1S3). — A paper comparing the cultural 

 methods of the two regions. 



Hop culture, Eejiy (Finding's Landw. Ztg., 47 (1898), No. 19, pp. 730-733, 756-758).— 

 An article on the use of hops for brewing purposes. The author considers the chem- 

 ical composition and the aroma of hops and discusses the methods of harvesting 

 and drying. 



Investigations on the effects of drying hops by fire heat, T. Kemy ( Wchnschr. 

 Brau., 14 (1897), No. 53, pp. 682, 683). 



Report on the culture experiments of the German potato experiment station 

 in 1898 (Sachs. Landw. Ztsehr., n. ser., .'1 ( 1899), No. S, pp. 81-S7 ; Dent. Landw. I'resse, 

 26 (1899), No. 19, pp. 196, 197). — A report on cooperative tests of new varieties of pota- 

 toes on 26 experiment fields located in different parts of Germany. 



Variety tests of potatoes, 1898, Tancre (Landw. Wchribl. Scldeswig-Holstein, 49 

 (1899), No. 10, pp. 166-171). — Tabulated results of cooperative variety tests of pota- 

 toes are given, with brief notes on the different experiment fields. Brief descrip- 

 tions are given of some of the varieties. 



The culture of potatoes on the experimental field at Grignon in 1896 and 

 1897, J. Crochetelle (Ann. Agron., 24 (1898), No. l,pp. 39-48). 



Experiments with potatoes, F. Desprez (Jour. Agr. Prat., 1899, 1, No. 9, pp. 814- 

 316). — A resume of the results of variety tests, distance experiments, and experi- 

 ments in hastening the maturity of late varieties is given. 



Ruta-bagas, H. L. de Vilmorin (Jour. Agr. Prat., 1S99, 1, No. 9,pp. 319-323, pi. I).— 

 This article discusses the origin and history of the rnta-baga, describes a number of 

 different varieties, and gives directions for the culture of the crop. 



Breeding Pirnaer rye and investigations on rye breeding in general, Steglich 

 and Fischer (Jahrb. Deut. Landw. Gesell., 13 (1S9S), pp. 198-210).— This paper describes 

 the method in which the Pirnaer rye was originated, and gives the results of experi- 

 ments in growing rye from different colored grains and from seed taken from plants 

 with different numbers of internodes. It was found that grains grayish green in 

 color were richer in nitrogen than reddish yellow or dark brown grains. 



Sugar cane from seeds in the Straits Settlements, C. Curtis (Agr. /•'«/. Malay 

 Peninsula [Bot. Gard. Dept. Straits Settlements], 1898, No. S, pp. 219-221, pi. l).—\. 

 popular article on growing sugar cane from seeds. 



Preparation of seed beds for tobacco plants (IViirt. Wchnbl. Landw.. 1S99, No. 

 10, p. 142). — A popular note. 



Culture and fertilizer experiments with tobacco, Dettin<;er (Ztsehr. Landw 

 Ver. Rheinpreussen, 15 (1898), No. 31, pp. 281-2S3).—The results of cooperative experi- 



