1002 
Index, 
Cucurbitacere of Socotra, 40i. 
Cunningham (J. T,), on Stichocotyle 
nephroyns, 619. 
Critical Note on the latest 
Theory in Vertebrate Morphology, 
759. 
Cyperaceffi of Socotra, 411. 
Deaths in Scotland, 627. 
Decimal Sub-divisions, the Need for, in 
Astronomy and Navigation, and on 
Tables requisite therefor, by Edward 
Sang, LL.D., 533. 
Declinometer. — An Electro-Magnetic 
Declinometer, by A. Tanaka date, 544. 
Deep Sea Deposits — their Nomencla- 
ture, Origin, and Distribution, by 
John Murray and M. I’Abbe Reiiard, 
495. 
Diatom Ooze, 511. 
Dickson (Professor Alexander), on the 
Structure of the Pitcher in the Seed- 
ling of Nepenthes, as compared with 
the Adult Plant, 381. 
Dioscoreacete of Socotra, 96. 
Disinfectants, their power of destroying 
Anthrax bacillus, by Dr A. Wynter 
Blyth, 633. 
Dispersion, the Dynamical Theory of, 
128. 
Donations to the Library, 981. 
Dott (D. B.), on the Acids of Opium, 
189. 
Double Algebra {see Plane Algebra). 
Drifted Trees in Beds of Sand and 
Gravel, at Musselburgh, by Prof. J. 
Geikie, 745. 
Dust (Cosmic), Microscopic Character 
of, 474. 
Dusty Air, The Formation of Small 
Clear Spaces in, by John Aitken, 440. 
Ebenaceee of Socotra, 406. 
Economics, Principles of, 593, 594, 937. 
Eigg, Boulders in, 212. 
Electrolytes, on the Measurement of 
Resistance in, by Prof. Cargill G. 
Knott, 178. 
Electrical Result. —On a Singular Elec- 
trical Result, by Mr Harry Rainy, 
756. 
Emissivity. — On Surface Emissivity, by 
Prof. Tait, 230. 
On the Proofs of Proportionality 
of Emissive and Absorptive Power, 
231. 
Energy, and its Conservation, 13; Kin- 
etic Energy, 15 ; Transformation of 
Energy, in a System, 17. 
Equation in Quaternion Differences, by 
Prof. Tait, 561. 
Euphorbiaceee of Socotra, 93, 410. 
Euclid, I. 47, Extensions of, by A. H. 
Anglin, 703. 
Felkin (Robert W.), Notes on the Madi 
or Moru Tribe of Central Africa, 303. 
Ficoidese of Socotra, 404. 
Filtration by Diminished Pressures, 
137. 
Flexure. — Properties of the Line of 
Simple Flexure, by Edward Sang, 
LL.D., 172. 
Forbes (Prof George) Transmission of 
Power by Alternate Currents, 141. 
Force, defined according to Newton’s 
view, 11; In such phrases as vis 
acceleratrix, vis impressa, vis insita; 
vis does not mean force, 10. 
Fractions (Recurring Chain), Approxi- 
mation to the Roots of Cubic Equa- 
tions, by help of, 385. 
Researches of M. E. de Jon- 
quim’es on Periodic Continued Frac- 
tions, 389. 
_ On the Phenomenon of “ Great- 
est Middle” in the Cycle of a Class 
of Periodic Continued Fractions, 578. 
On the Computation of Recur- 
ring Functions by the aid of Chain 
Fractions, 703. 
Galvanometer, a new Form of by 
Professor James Blyth, 594. 
Galvanic Currents passing through a 
very thin Stratum of an Electrolyte, 
by Professor H. von Helmholtz, 596. 
Gaseous Bodies, their Absorption of 
Low Radiant Heat, by Professor J. 
Gordon Macgregor, 24. 
Gaseous Spectra, Micrometrical Mea- 
sures of, %Prof. C. Piazzi Smyth, 696. 
Geddes (Patrick), A Re -statement of 
the Cell Theoiy, with Applications 
to Morpholog5q Classification and 
Physiology of Protists, Plants, and 
Animals; with Hypotheses of Cell- 
Structure and Contractility, 266. 
Principles of Economics, 943. 
Geikie (Professor James), Address on 
Recent Advances in European 
Pleistocene Geology, 186. 
On the Occurrence of Drifted 
Trees in Beds of Sand and Gravel at 
Musselburgh, 745. 
Geraniaceie of Socotra, 403. 
Gibson (John), on some Laboratory 
Arrangements, 137. 
Gordon, James, Latin Address to the 
University on the occasion of the 
Tercentenary, 940, 
Graff (Prof. L. von), Myzostomida of 
