HISTORY AND BIBLIOGRAPHY 823 



(8) The growing of clover and lucerne, so far as this can be 

 done with profit. 



(9) The growing of soiling crops, to the extent that may be 

 found practicable, both because of the fact that they can be cut 

 almost at any time that is desirable, and also because of their 

 ' ' smothering ' ' properties. 



(10) The utilizing of sheep for the destruction of weeds in 

 pastures. 



(11) The growing, as far as possible, at home, of the food re- 

 quired by the live stock of the farm, instead of purchasing it else- 

 where. 



(12) The keeping of the land of the farm constantly at work, 

 so far as this possibly can be effected. 



(13) The stimulation of the soil to a constantly vigorous 

 production by means of thorough working and a large use of 

 manure. 



(14) The practice of autumn cultivation to the largest extent 

 that is possible. 



(15) The exercise of the utmost possible precaution that no 

 weed seeds ripen upon the farm, if by any means whatever their 

 ripening can be prevented. 



(16) The giving of due heed to all the agencies by which weeds 

 are distributed and propagated, so as always to be able to counter- 

 act or defeat those agencies. 



(17) When once the work of eradication has been undertaken, 

 the making of it as thorough as possible, and the accomplishment 

 of it in the shortest possible time. 



(18) When once a state of cleanliness has been secured, the 

 maintenance of it thereafter as perfectly as possible under all 

 circumstances. 



In 1911 Orange Judd & Co. published a book on Weeds of the 

 Farm and Garden, which was written by L. H. Pammel. This 

 book contains, in addition to a number of half tone plates, figures 

 of a great many weeds of North America, discusses their geographi- 

 cal distribution and the best methods of extermination, and the 

 most important noxious weeds with their distribution. The table 

 of contents of the book is as follows : 



1. Weeds. Injury to Crops and Nature of. 2. Kinds of Weeds 

 as to Duration. 3. Dispersal of Weed Seeds. 4. The Parmer's 

 Interest in Good Seed, and How to Test Seed. 5. Weed Impurities 

 in Agricultural Seeds. 6. Some Weed Laws and Seed-Control 



