560 



INDEX. 



Lichens, note on certain, 222. 



Lime, note on the spectrum of, 547, 551. 



Linear differential equations, 118. 



Lockyer (J. N.), remarks on the recent 

 eclipse of the sun, as observed in the 

 United States, 179. 



, researches on gaseous spectra, 79. 



, spectroscopic observations of the 



sun : No. V., 74, 118 ; No. VI., 354. 



Logical inference, on the mechanical per- 

 formance of, 166. 



Macalister (A.), observations on the mode 

 of growth of discoid and turbinated 

 shells, 529. 



Maclear (Sir T.), Royal medal awarded to, 

 109. 



Magnesia, note on the spectrum of, 547, 

 550. 



Magnetic (monthly) determinations, 1866- 



69, made at Coimbra, 185. 

 survey of the British islands reduced 



to the epoch of 1842-5, 532. 

 Magnetism, contribution to terrestrial 



(No. XII.), 532. 

 Manegaum meteorite, the, 156. 

 Martius (C. F. P. von), obituary notice of, 



vi. 



Maskelyne (N. S.) admitted, 493. 



■ on the mineral constituents of mete- 

 orites, 146. 



Matter, on the continuity of the gaseous 

 and liquid states of, 42. 



Matthiessen (A.) and Wright (C R, A.), 

 researches into the constitution of the 

 opium bases : Part III. On the action 

 of hydrochloric acid on codeia, 83, 122. 



Matthiessen (A.), Royal medal awarded 

 to, 111. 



Melbourne (Great) telescope, notice of 

 the, 104. 



, account of, from April 1 868 to com- 

 mencement of operations in Australia 

 in 1869, 216 ; spectroscopic observa- 

 tions with, 242. 



Metallic vanadium, 316. 



Meteorites, on the mineral constituents of, 

 146. 



Meteorological observations, notice of pro- 

 gress of the British system of, 103. 



, results of frst year's performance of 



self-recording instruments at the central 

 observatory of the British system of, 3. 



Methylic cyanurate, 495. 



Microscope, on an aplanatic searcher, and 

 its effects in improving high-power de- 

 finition in the, 327. 



, use of, in the investigation of mete- 

 orites, 146. 



Miller (W. H.) on the crystalline form of 

 chloride of apomorphia, 88. 



Mills (E. J.) on the chemical activity of 

 nitrates, 348. 



Mole, on the organs of vision in the com- 

 mon, 322. 



Monobromethylbenzol, 125. 



Muscles of the human neck, shoulder, and 

 chest, on a group of varieties of, 1. 



Napier of Magdala (Lord), elected, 120; 



admitted, 196. 

 Nebula, change in the form of rj Argus, 



as observed at Melbourne, 104. 

 Nebulae, observations on, with the great 



Melbourne telescope, 220, 242. 



, researches on gaseous spectra of, 79. 



Neck, human, on a group of varieties of 



the muscles of, 1. 

 Nitrates, on the chemical activity of, 348. 

 North-eastern America, on the precarbo- 



niferous floras of, with especial reference 



to that of the Erian (Devonian) period, 



333. 



Nunneley (F. B.), the physiological action 

 of atropine, digitaline, and aconitine on 

 the heart and blood-vessels of the frog, 

 46. 



Obituary notices of deceased Fellows : — 

 Jean Victor Poncelet, i. 

 Nathaniel Bagshaw Ward, ii. 

 Robert Porrett, iv. 



Carl Friedrich Philipp von Martius. vi. 

 General Thomas Perronet Thompson, 

 si. 



Thomas Graham, xvii. 



Marie- Jean Pierre Flourens, xxvii. 



Peter Mark Roget, xxviii. 



Octane, derivatives of, from petroleum, 

 25 ; from methyl-hexyl carbinol, 27. 



Octyl compounds, on, 25. 



Odontograms, 544. 



Oliveira bequest, application of, 105. 



Olshausen (O.) on compounds isomeric 

 with the cyanuric ethers, 493. 



Opium bases, researches into the consti- 

 tution of the (Part III.), 83, 122. 



Orion, spectroscopic observations of the 

 nebula of, 242, 248. 



Owen (R.) on the fossil mammals of Aus- 

 tralia : Part III. Diprotodon australis, 

 Owen, 196. 



Palceocoryne, on, 42. 



Parasulphide of phenyl and parasulpho- 



benzine, 542. 

 Parkes (E. A.) and Wollowicz (Count C), 



experiments on the effects of alcohol 



(ethyl alcohol) on the human body, 



362. 



Parkinson (S.) admitted, 493. 

 Parsons (Capt, R. M.) admitted, 493. 

 Pepper (J. H.), some experiments with 



the great induction-coil at the Royal 



Polytechnic, 65. 

 Phenyl, on parasulphide of, 542. 



