1911-12.] 
Obituary Notices. 
501 
List of Contributions by George Chrystal to Scientific 
Literature. 
1. Report of the Committee for testing experimentally Ohm’s Law. B.A. 
Reports, Glasgow Meeting, 1876. 
2. On Bi- and Uni-lateral Galvanometer Deflections. Phil. Mag. y 
December 1876. 
3. Articles “Electricity” and “Electrometer.” Ency. Brit., 1878. 
4. Articles “Galvanometer” and “Goniometer.” Ency. Brit., 1879. 
5. Obituary Notice of Professor Kelland (in conjunction with Professor 
Tait). 1879. Proc. R.S.E., vol. x. 
6. On Minding’s System of Forces. 1880. Trans. R.S.E., vol. xxix. 
Abstract in the Proc., vol x. 
7. Address on Non-Euclidean Geometry. 1880. Proc. R.S.E., vol. x. 
8. On a New Telephone Receiver. 1880. Proc. R.S.E., vol. x. ; also in 
Nature, vol. xxii. } 24th June 1880. 
9. On the Differential Telephone. 1880. Trans. R.S.E., vol. xxix. 
Abstract in Proc., vol. x. 
10. On the Wire Telephone and its Application to the Study of the 
Properties of strongly Magnetic Metals. Proc. R.S.E., vol. x. See 
also Nature, vol. xxii., 29th July 1880, for a fuller account. 
11. Note on Thomas Muir’s Transformation of a Determinant into a 
Continuant. 1881. Trans. R.S.E., vol. xxx. 
12. On a Special Class of Sturmians. 1881. Trans. R.S.E., vol. xxx. 
13. Article “ J. von Lamont ” in Ency. Brit., 1882. 
14. Remarks on Dielectric Strength. 1882. Proc. R.S.E., vol. xi. 
15. Articles “Magnetism,” “Mascheroni, “Mathematics,” “Michell,” “ Mon- 
tucla,” in Ency. Brit., 1883. 
16. Present Fields of Mathematical Research. 1883. Opening Address to 
Edinburgh Mathematical Society. Never published. 
17. Articles “ R. Murphy,” “ Musschenbroek,” in Ency. Brit., 1884. 
18. Mathematical Models chiefly of the Surfaces of the Second Degree. 
1884. Edin. Math. Soc., vol. ii. 
19. Application of the Multiplication of Matrices to prove a Theorem in 
Spherical Trigonometry. 1884. Edin. Math. Soc., vol. ii. 
20. On the Discrimination of Conics enveloped by the Rays joining the 
Corresponding Points of Two Projective Ranges. 1884. Edin . 
Math. Soc., vol. ii. 
21. On a Problem in the Partition of Numbers. 1884. Edin. Math. Soc 
vol. ii. 
