70 



65. On the Composition of the Ash of Wheat-Grain, and 



Wheat- Straw, grown at Rothamsted, in different 

 Seasons, and by different Manures (Jour. Chem. 

 Soc., August, 1884) 1884 



66. Report of Experiments on the growth of Wheat for 



the second period of twenty years in succession 

 on the same Land (Jour. Roy. Ag. Soc. Eng., 

 vol. xx, s.s., part 2, 1884) 1884 



67. On some points in the Composition of Soils ; with 



Results illustrating the sources of the Fertility of 

 Manitoba Prairie Soils (Brit. Ass. for the Advance- 

 ment of Science, Montreal, September 2, 1884; 

 Abstract -T- Rep. p. 686. Full Paper Trans. 

 Chem. Soc., June, 1885) . . . . . . 1884-85 



68. On Agricultural Investigation ; being a Lecture de- 



livered at the Michigan State Agricultural College, 

 Lansing, Mich., October 14, 1884 ; and at Rutgers 

 College, New Brunswick, N.J., October 27, 1884 1884 



69. Note on some conditions of the development, and of 



the activity, of Chlorophyll. Abstract (Report of 

 the British Association for the Advancement of 

 Science for 1885) 1885 



70. On the Valuation of Unexhausted Manures (Jour. 



Roy. Ag. Soc. Eng., vol. xxi, s.s., part 2) . . 1885 



71. Results of Experiments at Rothamsted on the 



Growth of Barley for more than thirty years in 

 succession on the same Land (Agricultural 

 Students' Gazette, New Series, vol. iii, part 1) . . 1886 



72. Remarques sur la relation qui existe entre les sommes 



de temperature et la production agricole (Archives 

 des sciences physiques et naturelles, Troisieme 

 periode, Tome xvi, No. 11, Novembre 15, 1886) 1886 



73. The Home Produce, Imports, Consumption and 



Price of Wheat in the United Kingdom, Thirty- 

 four Harvest-years, 1852-63 to 1885-86 ("The 

 Field," February 12, 1887) 1887 



74. A contribution to the Study of Well Waters (Jour. 



Chem. Soc., June, 1887) 1887 



75. On the present position of the question of the 



Sources of the Nitrogen of Vegetation, with some 

 new results, and preliminary notice of new lines 

 of investigation. Preliminary Notice (Proc. Roy. 

 Soc., vol. xliii, p. 108) 1887 



