Langue: anglais
Edité par Royal Society of Canada, Toronto
Vendeur : Legacy Books, Louisville, KY, Etats-Unis
EUR 12,17
Quantité disponible : 1 disponible(s)
Ajouter au panierSoft cover. Etat : Good. pp71-95. Removed from PROCEEDINGS AND TRANSACTIONS OF THE ROYAL SOCIETY OF CANADA. THIRD SERIES, VOLUME XIV. MAY, 1920. VG. In report covers. This article is the result of an investigation into (1) the extent to which Western (Canada) grain is contaminated with weed seeds, (2) the relative prevalence of the seeds of different species, (3) the disposal and use of the screenings accumulating where the grain is cleaned, and (4) certain results arising from the various uses made of the screenings.