BIBLIOGRAPHY OF S. W. JOHNSON 271 



Ueber die schleimsauren Salze der Alkalien. Liebig's 



Annalen, 1855, vol. 94, pp. 224-230. 

 Chemische Untersuchung verschiedener Pflanzenaschen, 



Bodenarten und Gewasser. (Johnson and Sendtner.) 



Ibid., vol. 95, pp. 226-242. 

 Examination of Two Sugars (Panoche and Pine Sugar) from 



California. Amer. Jour. Sci., 1856, (2), vol. 22, pp. 6-8. 

 On Some Points of Agricultural Science. Ibid., 1859, (2), 



vol. 28, pp. 71-85. 

 Observations on Chancel's Method of Estimating Phosphoric 



Acid. Ibid., 1861, (2), vol. 31, pp. 281-283. 

 On the Soil- Analyses of the Geological Surveys of Kentucky 



and Arkansas. Ibid., vol. 32, pp. 233-254. 

 On the Equivalent and Spectrum of Caesium. (Johnson and 



Allen.) Ibid., 1863, (2), vol. 35, pp. 94-98. 

 On the Occurrence of Silica in the Higher Plants. Ibid., pp. 



124-126. 



Alkalimetry. Ibid., pp. 279-283. 

 On the Solubility of Sulphate of Lime in Chlorhydric Acid. 



Ibid., p. 283. 



Note on the Composition of Soils. Ibid., pp. 292-293. 

 The Nitrogen Question. Ibid., p. 426. 

 On Caesium, Separation from Rubidium. Ibid., vol. 36, pp. 



413-415. 

 The Characteristics of Thallium. Ibid., 1864, (2), vol. 37, 



pp. 121-122. 



On the Assimilation of Complex Nitrogenous Bodies by Vege- 

 tation. Ibid., 1866, (2), vol. 41, pp. 27-30. 

 On Native Crystallized Terpin. Ibid., 1867, (2), vol. 43, pp. 



200-201. 

 On Kaolinite and Pholerite. (Johnson and Blake.) Ibid., 



pp. 351-361 ; pp. 405-406. 



On Nitrification. Ibid., 1869, (2), vol. 47, pp. 235-242. 

 On the Estimation of Carbonic Acid. Ibid., vol. 48, pp. 111- 



114. 



