INDEX. 
Mineralogy of Scotland. Chapter I1.—The Felspars, 197- 
Chapter III.—The Garnets, 299. Chapter 1V.—Augite, 
Hornblende, and Serpentinous Change, 453. See 
HeEpp1izE (Professor M. F.) 
Monamines. Ona New General Method of Preparing the 
Primary Monamines. By Dr R. Mitner Morrison, 
693. 
Mono-Chroic and Di-Chroic Media, 793. See Smyru (Pro- 
fessor P1Azz1). 
Morrison (Dr R. M.), and Marspen (R. SyDNEy), B.Sc. On 
the Preparation and Properties of Pure Graphitoid and 
Adamantine Boron, 689. 
—— On a New General Method of Preparing the Primary 
Monamines, &c., 693. 
Morr (THomAs). On Hisenstein’s Continued Fractions, 135 
N 
Nitrate of Dimethyl-Thetine, 582. 
Crum). 
Nugatory Intersections defined and illustrated, 148, 160, 161, 
166. See Tarr (Professor P. G.). 
O 
Old Red Sandstone of Western Europe, 345. See Professor 
GEIKIE. 
Olagoclase, 245. 
Orthoclase, 209, 214-231. 
See Brown (Professor 
See HepDDLE (Professor M. F.). 
See HEDDLE (Professor M. F.). 
P 
Additional Memoir on Parallel 
See Home (Davip Mizns), 
Parallel Roads of Lochaber. 
Roads of Lochaher, 93. 
LL.D. 
PrarR (Dr Gustav). Additions to the Paper “On the 
Establishment of the Elementary Principles of Qua- 
ternions, &c.,” in the Transactions of the Royal Society 
of Edinburgh, vol. xxvii. By G. Puarr, Docteur és- 
Sciences, 37. 
On the Solutions of the Equation Ve?e=0, @¢ repre- 
senting a Linear Vector Function, generally not Self- 
Conjugate, Part I., 45, and Part II., 83. Index to 
Notations, 90. 
Puayrair (P. M.), M.A., and Dr ALEXANDER MacFaRLANE. 
On the Disruptive Discharge of Electricity through 
Liquid Dialectrics, 679-687. See Macrarnane (Dr 
ALEXANDER). 
Poly-lodide of Dimethyl-Thetine, 581. 
fessor CRUM). 
Propyl-Thetine, 583. See Lerts (Dr E. A.). 
Q 
Quatermions. Additions to the Paper “On the Establish- 
_ ment of the Elementary Principles of Quaternions, &.,” 
in the Transactions of the Royal Society of Edin- 
burgh, vol. xxvii. By G. Puarr, Docteur és-Sciences, 
37. 
—— On the Solution of the Equation Vepe=0, g¢ repre- 
senting a Linear Vector Function, generally not Self- 
Conjugate. By Gustav PLARR, 37. 
VOL. XXVIII. PART III. 

See Brown (Pro- 

887 
R 
Reflection from a Polished Revolving Straight Wire—the 
Curves produced by, 273. 
Roprnson (G. Carr). On Some New Bases of the Leuco- 
line Series. Extraction and Purification of Bases from 
Acid Tar from Shale Oil, 561. Fractional Distillation 
of the Mixed Bases, and Examination of Fractions, 563. 
Analysis of Chloro-Platinate from Fraction 290°-295°, 
563, 566. Treatment of Mixed Bases with Methyl- 
Iodide, 564. Examination of Fraction, 290°-295°, 565. 
Examination of Fraction, 270°-275°, 566. Analysis of 
Chloro-Platinate from Fraction, 270°-275°, 567. Exam- 
ination of Fraction, 310°-315°, 568. Analysis of Chloro- 
Platinate from Fraction, 310°-315°, 568. 
On the Solid Fatty Acids of Coco-Nut Oil, 277. 
Roots of Hquations, 119. See Dickson (J. D. Hamrron). 

S) 
Sandstone. On the Old Red Sandstone of Western Europe, 
345. See GrrKix (Professor). 
Sane (Epwarp). On the Curves produced by Reflection from 
a Polished Revolving Straight Wire. By Epwarp 
SANG, 273. 
— On the Toothing of Unround Discs which are intended 
to Roll upon each other, 191. 
— On the Tabulation ofall Fractions having their Values 
between two prescribed Limits, 287. 
Serpentinous Change. Chapter Fourth of the Mineralogy of 
Scotland, 530. See HEDD1LE (Professor M. F.). 
Silica, 197, 202. See Huppe (Professor M. F.). 
Srmpson (R. J. 8.) and MacrarnaNeE (Dr ALEXANDER). On 
the Disruptive Discharge of Electricity through Oil of 
Turpentine, 673. See MacrarLaANnE (Dr ALEXANDER). 
Smytw (Prazzi). Colour, in Practical Astronomy, Spec- 
troscopically Examined, 779. Apology for under- 
taking this Investigation, 779. Coloured Glass Series, 
780. Coloured Fluid Series, 782. First Result, from 
both Glasses and Fluids, 782. Second Result, as to 
certain Laws, 783. Physical, as against Optical, Ar- 
rangement of Colour Media, 784. Practical Ap- 
plication in Spectroscopy, 787. Nomenclature of 
Colours Optically, for Double-Star Observers chiefly, 
789. Limits of Newton’s “Nec variat Lux Fracta 
Colorem,” 791. Vision of Colours through Coloured 
Media, both Mono-Chroiec and Di-Chroic, 793. Chemical 
Indication of Di-Chroics, 795. Subjective Condition of 
the Colour-Blind, so-called, 796. The Art Problem, 
Green, 799. Postscript, a Coloration Perfected, 802. 
Appendix, I.—Coloured Glass Observations, 805. Ap- 
pendix II.—Coloured Fluid Observations, 816. Plate 
XLI. Coloured Glass Series, 842. Plate XLII. 
Coloured Fluid Series, 842. Plate XLIII. Nomen- 
clature of Colours, 843. 
Solenoids of Ampére, 169. Solenoidal Arrangement, 169. 
See Tarr (Professor P. G.). 
1002 
