JOH] 



343 



[JOH 



for the estimation of nitrogen in nitrates. Amor. 



Journ. Sci., 13, 1877, pp. 260-262. 

 Johnson, Samuel Wi/liam,& Chittenden, Ji/issell 



If. On SCHWEITZER'S "New acid ammonium 



sulphates." Amer. Journ. Sci., 15, 1878, pp. 131 



-134. 



2. On the distribution of arsenic in 



the human body in a case of arsenical poisoning. 



[1880.] Amer. Chem. Journ., 2, 1880-81, pp. 



332-337. 

 Johnson, Samuel William, & Jenkins, E. II. 



Determination of nitrogen in the analysis of 



agricultural products. [1879.] Amer. Chem. 



Journ., 1, 1879-80, pp. 77-83; Chemical News, 



40, 1879, pp. 28-30. 



2. On a method for the determination 

 of phosphoric acid. [1879.] Amer. Chem. Journ., 

 1, 1879-80, pp. 84-86; Chemical News, 40, 

 1879, pp. 39-40. 



3. On the determination of nitrogen. 



[1880.] Amer. Chem. Journ., 2, 1880-81, pp. 



27-34; Chemical News, 47, 1883, pp. 140- 



147. 

 Johnson, (Rev.) William. New British lichens: 



[Lecanora rhagadiza, Nyl., L. albolutescens, Nyl. ; 



Pertusaria spilomanthodes, Nyl., nn. sppj\. Journ. 



of Bot., 10, 1881, pp. 113-114. 

 Johnson, William II. 5. On the influence of 



acids on iron and steel. Manchester, Lit. Phil. 



Soc. Proc., 13, 1874, pp. GO-61. 

 6. Further observations and experiments 



on the influence of acids on iron and steel. 



Manchester, Lit. Phil. Soc. Proc., 13, 1874, pp. 



100-111. 



7. On the action of nascent hydrogen on 

 iron. Manchester, Lit. Phil. Soc. Proc., 13, 

 1874, pp. 130-131. 



8. On some remarkable changes produced 



in iron and steel by the action of hydrogen and 

 acids. [1874.] Roy. Soc. Proc., 23, 1875, pp. 

 168-179. 



9. On some remarkable changes produced 

 in iron and steel by the action of hydrogen and 

 acids. Nature, 11, 1875, p. 393. 



10. On the resources and future develop- 



ment of the coal fields of Europe. [1877.] Man- 

 chester Geol. Soc. Trans., 14, 1878, pp. 347- 

 354. 



11. On the electrical resistance and its 

 relation to the tensile strain and other mechanical 

 properties of iron and steel wire. Manchester, 

 Lit. Phil. Soc. Proc., 19, 1880, pp. 147-154; 

 Chemical News, 42, 1880, pp. 70-72. 



12. On the relation of electrical resistance 



to the chemical composition of steel wire. Man- 

 chester, Lit. Phil. Soc. Proc., 20, 1881, pp. 125- 

 127; Chemical News, 44, 1881, pp. 178- 

 179. 



13' Notes of some experiments made in 



February, 1881, on the influence of stress on the 

 electrical resistance of iron and steel wires. Man- 

 chester, Lit. Phil. Soc. Proc., 21, 1882, pp. 187 

 -188. 



Johnson, William Woolsey. 4. On the distribu- 

 tion of primes. Des Moines, Analyst, 2, 1875, 

 pp. 9-11. 



5. The Peaucellier machine and other 

 linkages. Des Moines, Analyst, 2, 1875, pp. 41 

 -45. 



6. Bipolar equations Cartesian ovals. Des 

 Moines, Analyst, 2, 1875, pp. 106-115. 



7. Note on a spherical proposition. 

 Messenger of Math., 4, 1875, pp. 14-15. 



8. The method of rates applied to geometry. 

 Messenger of Math., 4, 1875, pp. 72-73. 



9. Geometrical illustration of indeterminate 



forms, with a note on the differential of a function 

 of two variables. Messenger of Math., 4, 1875, 

 pp. 132-134. 



10. On three-bar motion. [1875.] Mes- 

 senger of Math., 5, 1876, pp. 50-52. 



11. Note on the correction of an error in 

 the theory of polyconic projections. Des Moines, 

 Analyst, 3, 1876, pp. 15-16. 



12. Recent results in the study of linkages. 

 Des Moines, Analyst, 3, 1876, pp. 42-46, 70- 

 74. 



13. Theory of parallels. Des Moines, 

 Analyst, 3, 1876, pp. 103-104. 



14. On the expression 0. Des Moines, 

 Analyst, 3, 1876, pp. 118-121. 



15. Note on the kite-shaped quadrilateral. 

 Messenger of Math., 5, 1876, pp. 159-160. 



16. Note on four-bar linkages. Messenger 

 of Math., 5, 1876, pp. 190-192. 



17. Singular solutions of differential equa- 

 tions of the first order. Des Moines, Analyst, 

 4, 1877, pp. 1-4. 



18. Classification of plane curves with 

 reference to inversion. Des Moiiies, Analyst, 4, 

 1877, pp. 42-47. 



19. Pedal curves. Des Moines, Analyst, 

 4, 1877, pp. 143-146. 



20. Note on evaluation of indeterminate 

 forms. Des Moines, Analyst, 4, 1877, pp. 177- 

 178. 



21. On the determination of the sign of 

 any term of a determinant. [1876.] Messenger 

 of Math., 7, 1878, p. 59. 



22. Enumeration of primes. Des Moines, 

 Analyst, 5, 1878, pp. 7-8. 



23. Note on the "15" puzzle. Amer. 

 Journ. Math., 2, 1879, pp. 397-399. 



24. [The algebraic equation whose roots 

 are the real quantities found by giving integral 



, . 2/CTT 



values to k in x = cos , n being a given 

 integer. Also the equation whose solution is 



