INDEX TO 
A 
Alloys. Vaviation with Temperature of their Elec- 
trical Resistance, 599. See MacGrecor 
(Professor J. G.) and Kworr (C. G.), D.Sc., 
F.R.S.E. 
Amphicentrum. A genus of the Platysomide, 363. 
Aphrosiderite. A variety of Ripidolite, 68. Analy- 
sis of, 69. 
B 
Bands of Metamorphic Segregation, 7, 9. 
of Dominant Crystalline Action, 9. 
Basalts of Basin of Firth of Forth, 500. 
Beluga. The Anatomy of the Northern Beluga 
(Delphinapterus leucas) compared with that of 
other Whales. By Morrison Watson, M.A., 
and Atrrep H. Youne, M.B., 393. Dimen- 
sions, 394. Digestive Organs, 396. Hyoid 
Bone, 409. Muscles of Tongue and Hyoid 
Bone, 409. Laryngeal and Respiratory Organs, 
412. Circulatory Organs, 424. Brain and 
Organs of Sense, 427. Urinary Organs, 428. 
Generative Organs, 429. 
Benedenius. A genus of the Platysomide, 354. 
Bhreckite, Analysis of, 111. 
Bile. Physiological Actions of Drugs on the Secre- 
tion of Bile, 133. See RutHERForpD (Professor 
Wittram), M.D. 
Biotite. A Mica of Scotland, 15. Analysis of, 19, 
34, 35, 37. Optically either uniaxial or bi- 
axial to a very small extent, 19. Action of 
Fluxes, the Blowpipe, and Acids on, 42. By 
Professor Huppie. 
Births of the Hight Large Towns of Scotland (1866- 
75), 119. See Hayorart (J. Berry). 
Briytu (James), M.A., F.R.S.E. On the Transmis- 
sion of Sound by Loose Electrical Contact, 281. 
Bucuanan (J. Y.), F.R.S.E. Preliminary Note on 
the Compressibility of Glass, 589. 
VOL. XXIX. PART II. 
VOT 24x. 
C 
Carboniferous Volcanic Rocks of the Basin of the 
Firth of Forth, their Structure in the Field 
and under the Microscope, 437. See GErkiE£ 
(Professor). 
Celadonite, Analysis and Specific Gravity of, 102. 
Cell-Multiplication in a Species of Enteromorpha. 
By P. Geppss, F.R.S.E., 555. 
Cheirodus, or Amphicentrum. A genus of Platy- 
somide, 363. 
Chlorites. The Enumerated, 58. Their Specific 
Gravities according to Dana, 59. Penninite, 
60. Ripidolite, 65. Chlorite, 69-75. Chlori- 
toid, 76. Tale-chlorite, 78, Glauconite, 79. 
See Heppte (Professor). 
Chloritic Minerals. Mr J. Currton Warp on Chlo- 
rites, 56. ZrirKEL and Cotta on the occurrence 
of Chlorite, 56, 57. Dana and RosrnsuscH, 
as to non-existence of Chlorite in Diabase, 57. 
Chloritoid. Analysis and Specific Gravity of, 76, 
77. Its Crystals monoclinic, 77. 
Chloroform. The Action of Sulphide of Potassium 
upon Chloroform. By W. W. J. Nicot, M.A., 
531. 
Chlorophaeite, Analysis and Specific Gravity of, 87,88. 
Chloroplatinate of Methyl Tetracoline, 274. 
Curystat (Professor), F.R.S.E. On Minpine’s Sys- 
TEM OF Forogs, 519. First Method of arriving 
at Minding’s Result—when the Components of 
Force and Couple are found in terms of the 
Rodrigues Co-ordinates, 519. Second Method 
—Formule connecting the Co-ordinates of the 
foot of the Perpendicular on a Central Axis or 
Single Resultant, 523. On the Complex of 
Central Axes, 524. Exploration of the Complex 
by Central Radii, 525. On the Congruency 
formed by the Lines of Single Resultants, 528. 
THE DIFFERENTIAL TELEPHONE, 609.—Part I. 
On the General Theory of the Instrument, 
and its Application to Electrical Measure- 
81 
On 
