SEEDS WEEDS. 265 



SEEDS— WEEDS. 



Report on the introduction and distribution of seeds and plants by the 

 bureau of agriculture, W. S. Lyon {Philijjpine Biindu Agr., J'hriiieni' Bui. 7, pp. 

 IS, ph. .)). — A report is given of the introduction and dintribution of seeds and 

 plants, must of which were field and forage crops and vegetable seeds. The origin 

 of the different varieties of plants is given, many of them being introduced for test- 

 ing tlieir a(laptal)ility to Pliilippine conditions. 



The seeds of rescue grass and chess, F. H. Hillman ( U. S. Dept. Agr., Bureau 

 of Plant Industry Bid. 25, pp. 5-8, figs. 3). — This has been noted from advance sheets 

 (E. S. R., 14, p'. 875). 



Report of the section of seed control for the year ended June 30, 1902, 

 A. VoiGT {Bot. tStaatsinst . llarnhurg, Ber. Aid. Sarnenkontrollc, 1002, XI, pp. 10). — 

 In this report the author gives an account of the investigations carried on by the 

 section of seed control which is attached to the botanical institute of Hamburg. 

 During the year covered, 2,760 separate investigations were made, the most of which 

 were of clovers and other forage plants. The results of the different tests are shown 

 in tabular form, and in general a decided improvement is noted in the purity and 

 germinative vitality of the different samples of seeds over the results obtained the 

 previous year. , Investigations on the presence of dodder in different forage plants 

 showed about 34 per cent to contain dodder seed in greater or less abundance. Notes 

 are given on the various samples of seed investigated, the author commenting upon 

 their quality. 



Report of the Agricultural-Botanical Experiment and Seed-Control Station 

 at Breslau, 1903, W. Remek {Brr. Ti'd. Agrhot. Fens. S((inenkoutrollsfat., Breslau, 

 I'MS, -pp. 16). — A report is given of the seed investigations carried on under the 

 auspices of the seed-control station of the Agricultural Society of Breslau for the year 

 ended March 31, 1903, 3,957 samples of seed having been examined. The maxi- 

 mum, minimum, and average percentage of purity, germination, and intrinsic worth 

 of the different varieties of seeds are shown in tabular form. There were examined 

 during the year 2,390 samples of red clover, 388 white clover, 473alsike, 187 timothy, 

 67 alfalfa, 68 serradella, and a lesser number of a great many other varieties of seed. 



The report also shows the presence of dodder seed in different samples of forage 

 plants, the seeds of this parasite being found in 36.4 per cent of the samples of red 

 clover, 26.2 per cent of white clover, 31.1 per cent of alsike, 15 per cent of yellow 

 clover, 26.4 per cent of serradella, and 25.6 per cent of timothy seed. Brief notes 

 are also given on plant diseases and other botanical subjects. The occurrence of 

 many diseases of cereals, beets, potatoes, and other plants is noted, and suggestions 

 are given of possible means for their prevention. 



Troublesome weeds, .7. B. Davy {Transvaal Agr. Jour., 1 {1903), No. 4, pp- tlO- 

 112). — Notes on tlie l)urrweed {Xanthium spinosuvi) and sida {Sida rhombifolia), and 

 suggestions for their eradication. 



Wild mustard, J. R. Anderson {Dept. Agr. British Columbia, Bui. 11, ]>ji. 12, figs. 

 2). — A description is given of the wild mustard {Brassica sinapistruni) wliii'h is widely 

 spread through Canada and which is probably one of the worst weeds occurring in 

 the grain fields of that region. The methods of distribution of this weed are noted 

 and suggestions made for its eradication by spraying with copper sulphate or iron 

 sulphate solutions. 



Eradication of wild mustard, II. Hitier {Jour. Agr. Prat., n. scr., 5 {1903), No. 

 21, pp. G')S, 059). — A review is given of 3 years' experience in si)raying fields of cereals 

 for the era<lication of the wild mustard. The various methods described in(;lude 

 spraying with a solution of 32 to 4 })er c«nt copper sulphate, 2 to 3 per cent copper 

 nitrate, 20 per cent iron sulphate, and 20 i)er cent sodium nitrate added to a 2 per 



