258 PASTORAL AND AGRICULTURAL BOTANY 



Bulletin 660, 1915; Eradication of Ferns from Pasture Lands in the Eastern United 



States. Farmers' Bulletin 687, 1915. 

 DARLINGTON, WILLIAM: American Weeds and Useful Plants. Second edition, New 



York, Orange Judd & Company, 1859. 

 DEWEY, LYSTER H.: Weeds and How to Kill Them. Farmers' Bulletin 28, 1895. 



Legislation Against Weeds. Bulletin 17, Division of Botany, U. S. Department 



of Agriculture, 1896; Migration of Weeds. Yearbook of the U. S. Department of 



Agriculture, 1896, 263-286. Weeds and How to Kill Them. Farmers' Bulletin 28, 



second revision, 1905. 

 DUVEL, J. W. T. : The Vitality of Buried Seeds. Bulletin 83, Bureau of Plant Industry, 



1905. 

 FERNALD, M. L.: Some Recently Introduced Weeds. Transactions Massachusetts 



Horticultural Society, 1905, Part I, pages 11-22. 



FORSYTE, ALEX: Weeds. Gardeners' Chronicle, new ser., viii, 408, Sept. 29, 1877. 

 GEORGIA, ADA E.: A Manual of Weeds. New York, The MacMillan Company, 1914. 

 GRAY, ASA: Weeds. Gardeners' Chronicle, new ser., xii, 423, 455, Oct. 4, 1879. 

 HANSEN, ALBERT A. : Canada Thistle and Methods of Eradication. Farmers' Bulletin 



1002, 1918. 



HASKELL, S. B.: Vitality of Buried Seed. The Country Gentleman, March 17, 1917. 

 HENKEL, ALICE: Weeds Used in Medicine. Farmers' Bulletin 188, 1904. 

 HILLMAN, F. H.: Nevada Weeds. Bulletins 21, 22, 1893, 38, 1897, University of 



Nevada, Agricultural Experiment Station. 



LITERARY DIGEST: A Crop that Makes its Own Weed Killer. May 18, 1918, page 22. 

 PAMMEL, L. H. : Weeds of the Farm and Garden. New York, Orange Judd Company, 



1911. The Weed Flora of Iowa. Bulletin 4, Iowa Geological Survey, 1918. 

 PIPAL, F. J.: Wild Garlic and Its Eradication. Bulletin 176, Purdue University 



Agricultural Experiment Station, 1914. Red Sorrel and Its Control. Bulletin 



197, 1916; Rabbit-proof Plants, List of. The Garden, I, 9, Nov. 25, 1871. 

 SELBY, A. D.: A First Ohio Weed Manual. Bulletin 83, Ohio Agricultural Experiment 



Station, 1897. 

 WILLIS, J. J.: Vitality of Seeds Buried in the Soil (review of the work of W. J. Beal). 



Gardeners' Chronicle, new ser., xxv, 757, June 12, 1886. 

 WOODSTOCK, CHARLES M.: To Eradicate Moss from Grass-land. Gardeners' Chronicle 



& Agricultural Gazette, 1869, 671-72 (June 19). 



Suggestion to Teachers. Teachers should have made collections of a number of 

 the principal weeds and weed seeds, also illustrations of the same for class demonstra- 

 tions. An attempt should be made to make an herbarium and set of dried weeds of 



the local flora, as the weed flora varies in different parts of the world. 



i 

 LABORATORY EXERCISES 



1. Describe the dried or fresh specimens of the weeds handed to you making floral 

 diagrams of the flower parts. 



2. Examine the fruits and seeds of a number of leguminous plants with especial 

 reference to the structure, method of dehiscence and arrangement of seeds. 



3. Draw and study in detail the seeds of a few of the above plants, or any good 

 substitutes. 



