24 



APPENDIX D. 



The quantities to be weighed and sifted for each single determination of 

 the purity, as usual in Wageningen, are running as follows:^) 



200 Grammes for all large-seeded species" or varieties of Lupinus, Phaseolus, Vicia Faba, 

 and Zea Mais; 



100 Grammes for Pisum and less large-seeded species, resp. varieties of Phaseolus 

 and of Vicia Faba; 



50 Grammes for grains of cereals; 



25 Grammes for Beta, Cannabis, Cucumis, Cucurbita, Ervum Lens and Polygonum 

 Fagopyrum; 



15 Grammes for Eaphanus, Scorzonera and Spinacia; 



10 Grammes for Allium, Camelina, Foeniculum, Linum usitatissimum, Pinus silvestris 

 and other tree seeds of equal size and Trifolium incarnatum; 



5 Grammes for Anthriscus, Anthyllis, Arrhenatherum, Caium, Festuca pratensis, 

 Lolium, Medicago, Melilotus, Pastinaca and Trifolium pratense; 



3 Grammes for Anethum, Brassica, Cichorium, Lactuca sativa, Lotus corniculatus, 

 Lotus tenuifolius, Petroselinum, Sinapis, Spergula and Valerianella; 



2 Grammes for Alopecurus, Cynosurus, Dactylis, Festuca (ovina, duriuscula and 

 rubra), Holcus lanatus (peeled), Lotus uliginosus, Phleum pratense, Portulaca, Trifolium 

 hybridum and Trifolium repens; 



4 X '/2 Gramme for Anthoxanthum and Holcus (rough) ; 



1 Gramme for Apium, Daucus, Papaver &c.; 

 0,5 Gramme for Agrostis, Avena flavescens and Poa; 

 0,25 Gramme for Nicotiana. 



APPENDIX E. 



Examination of Holcus lanatus (with husk) and of Anthoxanthum 



odoratum. 



A qua,ntity of 2 gTammes is divided into four equal parts. Each part (consisting of 

 V2 gramme) is examined by another assistant, the ordinary method being at first employed 

 (naked caryopses are counted as "pure seed", and "the seed" afterwards examined by means, 

 of translucent light from below, empty glumes being counted as harmless impurities).j The 

 full "seeds", together with the caryopses which from the outset have formed part of the 

 "seed", are classed as pure seed. Li order to get a better control in this examination, the 

 seeds are husked, if the caryopses are full, and at the end of each test the following must 

 be weighed: 



1. Noxious impurities; 



2. Harmless impurities; 



3. Naked caryopses; 



4. Seeds, full at the outset, but husked during the test. 



(No. 3 and 4 are classed as pure seed.) 



In testing for germination, only the naked caryopses are taken. 



APPENDIX F. 



Methode pour I'Examen des graines de betteraves, actuellement usit^e 

 a la Station des Essais des Semences de I'Etat k "Wageningen. 



La Prise des Echantillons. 



Apres avoir ficartfi les graines sur un baquet a meler et apres les avoir scrupuleusement- 

 melangSes, on en prend ci et IS, de petites quantitSs, jusqu'a un total pesant 25 grammes. 



') Each determination is carried out in duplicate. 



