Li8T OF Bulletins Available for Distribution. 



LIST OF BULLETINS AVAILABLE FOR 

 DISTRIBUTION. 



Application to be made to the Department of 

 Agriculture, Pretoria. 



Applicants for bulletins are requested kindly to quote the ftdl nianber of 

 each, as shown hereunder, and to enclose also payment for same. The cost 

 of each bulletin is indicated; those not marked are issued gratis. 



AGRICULTURF. 



Agriculture, Law of Diminishing Return in. By H. H. W. de Villiers, B.A. 



U.R. 20/1914. 

 Dr\' Farming. By H. S. du Toit, Superintendent, Government Dry-land 



Station, Lichtenburg. T.F.B. 130. 

 Drv Farming, What is. Bv Dr. \y . Macdonald, Dr\-land Agronomist. 



T F.B. q6. " " 



Dry-land Farming. By H. S. du Toit 3d. L.S. 82. 



AGRICULTURAL EDUCATION. 



National College of Agriculture for South Africa. By Dr. W. Macdonald, 



Editor, Uftion Agricultural Journal. U.R. 1/1913. 

 National College of Agriculture for the Transvaal. By Dr. W. Macdonald, 



Editor, Union Agricullural Journal. U.P. 

 National College of Agriculture for <^he Transvaal, III. By Dr. W. 



Macdonald, Editor, Union Agrictdtural Journal. U.P. 



BOTANY. 

 Gem-'.ral. 



Bordeaux Mixture, The Prepai^ation of. By E. Doidge, M.A., Assistant Plant 



Pathologist. U.F.S.^ 20. 

 Collecting of Botanical Specimens and the Alaking of a Herbarium. By 



E. Percy Phillips, M.A., D.Sc, F.L.S., Division of Botany. L.S. 71. 

 Prosofis jidifiora, Tht Mesquite or Algaraba Tie.e; and Prosofis -puhescens, 



the Screw Bean. By C. C. Robertson, M.F., Research Officer, Forest 



Department. U.R. 67/1914. 

 Seed Testing, The Value of. By E. Harrison and E. Baker, School of 



Agriculture, Cedara. 'J.R. io/iq£4. 

 Water Hvacinth. By Miss S. M. Stent, Herbarium Assistant, Division of 



Botany. U.R. 68/1913- 



Plant Diseases. 



Apple, Bitter Pit of the. Bv I. B. Pole Evans, B.A., B.Sc, F.L.S., Plant 



Pathologist. T.S.B. i. 

 \pple Tree Canker or Black Rot Fungus in South Africa. Bv I. B. Pole 



Evans, M.A , B.Sc, F.L.S., Plaiit Pathologist. T.F.B. 25 and U.F.B. 12. 

 Copper Carbonate, Ammoniacal Solution of. By E. Doidge, M.A. , Assistant 



Plant Pathologist. U.F.B. 17. 

 Citrus Canker. By I. B. Pole Evans, M.A., B.Sc, F.L.S., Chief, Division of 



Botanv and Plant Patholcg\-. L.S 30. 

 Citrus Fruits, A New Disease of. Bv I. B. Pole Evans, M.A., B.Sc, F.L.S. 



U.F.B. 14. 

 Citrus Canker and its Eradication, The Characteristics of. Bv E. M. Doidge, 



M.A., D.Sc, F.L.S. id. 3/J918. 

 Cane, Root Diseases in. By P. v. d. Bijl, M.A., D.Sc, F.L.S. id. 4/1918. 

 Dikvoet, Club Root oc Finger and Toe {Plasmodiophora brassicae Woronin) 



in South Africa. By I. B. Pole Evans, M.A., B.Sc, F.L.S., Chief, 



Division of Plant Pathology and M\cology. U.R. 39/1913- 



{Continued on page Hi of cover. 



