Index. 775 
Janssen (Jules) elected an Honorary- 
Fellow, 92. 
Jenkin (Professor Fleeming) awarded the 
Keith Prize for the Period 1877-79 
for his Paper ‘ ‘ On the Application 
of Graphic Methods to the Determi- 
nation of the Efficiency of Machinery,” 
545, 637 ; Address by Professor 
Balfour on presenting the Prize, 637. 
Jerusalem, its Topography, by Lieut. 
Claude Reignier Conder, R.E., 474. 
Discoveries at, by Dr Robinson, 
477 ; Colonel Warren, 477, 478. 
Jolly (William) on the Transportation 
of Rocks and carried Boulders of 
Moray Firth, 178, 193, 620. 
Keith Prize for Biennial Period 1875- 
77, Presented to Professor Heddle, 
62. 
Kelland (Professor Philip) elected Pre- 
sident of the Society, 1. 
Delivers Introductory Address 
for Session 1878-79, 2. 
— his Address on Presenting the 
Keith Prize to Professor Heddle, 
62. 
Notice of his Death, and Eloge 
of, by Sir Alexander Grant, 208. 
The Society express their great regret 
at the Death of their President, 
211 . 
Obituary Notice of, 321. 
Knots. — On the Measurement of Be- 
knottedness, by Professor Tait, 48. 
Knott (Dr C. G.) and Professor Mac- 
gregor on the Variation and Tem- 
perature of the Electric Resistance 
of certain Alloys, 714. 
Researches on Contact Elec- 
tricity, 362. 
Lamont (Johann von), Obituary Notice 
of, 358. 
Laplace’s Dynamical Theory of the 
Tides, 92. 
Laws of the Society. — Alteration of Law 
XVII., and Addition to Law XV., 
408. 
Lepidomelane, 64. 
Leucoline Series, Part II., by G. Carr 
Robinson and W. L. Goodwin, Part 
II., 224, Part III., 256. 
Light, its Action on the Iris, by 
William Akroyd, 37. 
Links. — If the Line divides Unsymmet- 
rical Angles, the whole becomes a 
Link, 49. 
Linlithgow Loch, Distribution of Tem- 
perature in, by J. Y. Buchanan, 
M.A., 56, 68. Mr Aitken’s Obser- 
vations on the subject, 409. 
Listing (Jules Benedict) elected an 
Honorary Fellow, 92. 
Logical Algebra, Principles of, Part I., 
by Dr Alexander Macfarlane, Part I., 
44, Part II. , 61, Part III., Applica- 
tion to certain Problems in the Theory 
of Probability, 105. 
Loch-Lomond, Distribution of Tempera- 
ture in, by J. Y. Buchanan, 69. Mr 
Aitken’s Observations on this subject, 
414. 
M‘Bain (Dr James), Obituary Notice of, 
350. 
Macfarlane (Dr Alexander) on a Calcu- 
lus of Relationship, 224. 
Principles of Logical Algebra, 
Part I., 44, Part II., 61, Part III., 
Application to certain Problems in 
the Theory of Probability, 105. 
on the Solution of the Simul- 
taneous Equations ax + by = c, and 
dx + ey—f, , when the Symbols d ..ote 
Qualities, 283. 
on Positive and Negative Elec- 
tric Discharge between a Point and a 
Plate, and between a Ball and a Plate, 
555. Point and Plates, 557, 560 ; 
Ball and Plate, 558, 561. 
Suggestions on the Art of 
Signalling, 698. 
and Playfair (P. M.) on the Dis- 
ruptive Discharge of Electricity, 50. 
on the Discharge of Electricity 
through Olive Oil, 727. 
MacGillivray (Dr), his Description of 
the “Big Boulder” in Barra, 177. 
M ‘Gregor (Professor) and Knott (Dr C. 
G.) on the Variation with Tempera- 
ture of the Electric Resistance of 
certain Alloys, 714. 
Makdougall - Brisbane Prize for the 
Period 1876-78, presented to Pro- 
fessor Geikie, 272. 
M ‘Kendrick (Professor J. G.) on the 
Effects of Chloroform, Ethidene Dich- 
loride, and Ether on Blood-Pressure, 
100 . 
M‘Laren (Charles), Notes on the Striae 
and Boulders on the Pentlands, 
189. 
Magnetic Bodies, their Properties as 
Determined by the Wire Telephone, 
707. 
Maps. — On the Colouring of Maps, by 
Professor Tait, 501. 
Note on the Colouring of Maps, 
by Professor Frederick Guthrie, 727. 
