FIXED OILS, 



205 



Brassica napus. 



the north of that country and in Belgium, particu- 

 larly in the environs of Lille, much attention is given 

 to the production of this useful seed. It is sown 

 broadcast in the months of June and July ; from six 

 to eight pounds of seed are generally allowed to each 

 acre of ground. Care is taken so to spread the seed 

 that the young plants shall not spring up in patches. 



