INDEX TO VOL. XXVITI. 
A 
Acids. On the Solid Fatty Acids of Coco-Nut Oil. 
Carr RoBInson, 277. 
Albite, 239. See HeppuxE (Professor M. F.). 
Albyl, Sulphide of, 614. See Lerrs (Dr E. A.). 
Alloys. Thermo-Electric Properties of Alloys, 321. 
Kwort (C. G.). 
Aluminous Amphiboles, 509. 
Amphicheiral Forms, 187. See Tarr (Professor P. G.,). 
Amyl-Thetine, 503. See Lerrs (Dr E. A.). 
Andesine, 247-249. See HuppuxE (Professor M. F.). 
Anortlite, 260. See HeppuE (Professor M. F.). 
Augite, 453. Chapter Fourth of the Mineralogy of Scotland. 
See Heppzz (Professor M. F.). 
By G. 
See 
B 
_ Bases of the Leucoline Series, 561. See RoBInson (G. Carr). 
Beknottedness, 177. See Tarr (Professor P. G.). 
Belinkedness defined, 187. See Tarr (Professor P. G.). 
Bifilar Magnetometer. By J. A. Broun, F.R.S., 41. 
BuytH (Jamus), M.A. An Account of some Experiments on 
the Telephone and Microphone, 557. 
Boron. The Preparation and Properties of Pure Graphitoid 
and Adamantine Boron. By Dr R. M. Morrison and 
R. Sypney Marspey, B.Sc., 689. 
Bromacetic Acids, 612-614. See Lerrs (Dr E. A.). 
Bromacetic and Iodacetic Ethyl Ether, 618. See Lurrs (Dr 
E. A.). 
Bromaurite of Dimethyl-Thetine, 575. 
Crum). 
Broun (J. A.) Note on the Bifilar Magnetometer, 41. 
Brown (Professor Crum) and Lerrs (Dr E. A.). On Dime- 
thyl-Thetine and its Derivatives, 571. Hydrobromate 
of ,Dimethyl-Thetine, 573. Bromaurite of Dimethyl- 
Thetine, 575. Bromo-Platinate of Dimethyl-Thetine, 
575. Action of Hydrobromate of Dimethyl-Thetine on 
Ethylate of Sodium, Oxide of Copper, Oxide of Mercury, 
and Ammonia, 576. Dimethyl-Thetine, 577. Hydro- 
chlorite of Dimethyl-Thetine, 579. Chloro-Platinate 
of Dimethy]-Thetine, 580. Polyiodide of Dimethyl 
Thetine, 581. Nitrate of Dimethyl-Thetine, 582. 
Butyl-Thetine, 583. See Lerts (Dr E. A.), 
PART III. 
See Brown (Professor 
VOL. XXVIII. 

C 
Charcoal and certain Alloys, their Thermo-electric Properties 
of Charcoal and certain Alloys, with a Supplementary 
Thermo-Electric Diagram. . By C. G. Knort, B.Sc., 
and J. G. MacGrugor, D.Sc., 321. 
Chloro-Platinate of Ethyl-Bromate of Dimethyl-Thetine, 623. 
See Lurrs (Dr E. A.). 
Chloro-Platinate of Dimethyl-Thetine, 580. 
(Professor Crum). 
Coco-Nut Oil. On the Solid Fatty Acids of Coco-Nut Oil. 
By G. Carr Roprnson, 277. 
Cohesion of Liquids. Ona Method of Determining the Co- 
hesion of Liquids, 697. 
Colour Blind, their subjective condition, 796. See SuytH 
(Professor Prazzi). 
Colour, in Practical Astronomy, Spectroscopically examined. 
By Piazzi Suytu, Astronomer Royal for Scotland, 779. 
Coloured Glass and Fluid Series, 780-783. Physical, as 
against Optical, arrangement of Colour Media, 779. 
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-chroic and Di-chroic, 793- 
795. Subjective condition of the Colour-Blind, 796. 
The Art-Problem, Green, 799. A Coloration perfected, 
802. Plate XLI.—Coloured Glass series, 842. Plate 
XLII.— Coloured Fluid series, 842. Plate XLITI.— 
Nomenclature of Colours, 843. By Professor Prazzat 
SmytH, Astronomer Royal for Scotland. 
Conductivity. Thermal and Electric Conductivity, 717. 
Cooling. Statical Curves of Cooling, 731. See Tarr (Pro- 
fessor). 
Copper. Its Thermal and Electric Conductivity, 739. 
Tarr (Professor). 
Curves produced by Reflection from a polished Revolving 
Straight Wire. By EpwarD Sane, 2738. 
See Brown 
See 
D 
Determinants. Ona Class of Determinants. By J. DougLas 
Hamitron Dioxson, M.A., 625. 
Diamyl-Thetine, 589. See Lerts (Dr E. A.). 
, 10 Y 
