INDEX 
Absorption Spectra. See Spectra. 
Acanthodidse, a family of Ganoidei, 
387. 
Acetylmorphine, 342. 
Acipenseroidei, a sub-order of Gan- 
oidei, 390. 
Addresses. — Address by Sir Wm. 
Thomson on presenting the Gunning 
"Victoria Jubilee Prize (1887-90) to 
Prof. Tait, 417. 
Address by Prof. A. Crum 
Brown on presenting the Keith 
Prize (1887-89) to Prof. Letts, 418. 
Address by Prof. James Geikie 
on presenting the Neill Prize (1886- 
89) to Mr Robert Kidston, 419. 
Closing Address for Session 
1889-90 by the Hon. Lord M‘Laren, 
406. 
Aitken (John), on the Number of 
Dust Particles in the Atmosphere 
of certain places in Great Britain 
and on the Continent, with Remarks 
on the Relation between the Amount 
of Dust and Meteorological Pheno- 
mena, 193 ; the Rigi Kulm Observa- 
tions, 199, 227 ; Eiffel Tower Observa- 
tions, 202; Observations at London, 
205 ; at Kingairloch, 205 ; at Ben 
Nevis, 206 ; at Alford, 207 ; at 
Dumfries, 208 ; on the Pollution of 
the Atmosphere by Artificial Causes, 
209; Dust and Atmospheric Trans- 
parency, 211; Apparatus for Testing 
the Condensing Power of Dust, 221 ; 
Dust and Condensation, 224; Haze, 
226; Dust and Wind, 234; Fog, 238; 
Speculations, 239; Conclusions, 246. 
Allardice (R. E.), M.A. , Notes on the 
Solutions of certain Equations, 139. 
Aluminium, Thermal Conductivity of, 
by A. Crichton Mitchell, B.Sc., 300. 
Amylmorphine, 341. 
Ashdown (Herbert H.), M.D., on 
certain Substances found in the 
Urine, which reduce the Oxide of 
Copper upon Boiling in the presence 
of an Alkali, 58. 
Asymmetric Carbon Atom. See Brown 
(Prof. A. Crum). 
Australian Birds. List of West 
Australian Birds, showing their 
Geographical Distribution, including 
those of Tasmania, by A. J. Camp- 
bell, 304. 
Bandaisan, Volcanic Eruption at, by 
Prof. C. Michie Smith, 65. 
Bacillus Tuberculosis, 259, 263, 264, 
268. 
Beddard (Frank E.), M.A. Observa- 
tions on the Structure of a Genus of 
Oligochseta, belonging to the Limi- 
coline Section, 5. 
Benzoylmorphine, 349. 
Birds (West Australian). See Camp- 
bell (A. J.). 
Blake (R.F.), and Letts (Prof. E. A.). 
A New Method for Determining 
Phosphorus in Organic Phosphorus 
Compounds, 382. 
Bromine and Sodium Carbonate. Ac- 
tion of, on Solutions of Cobalt and 
Nickel Salts, by Dr John Gibson, 
56. 
Brown (Prof. A. Crum). A New Syn- 
thesis of Dibasic Carbon Acids, 53. 
On the Relation of Optical 
Activity to the Character of the 
Radicals united to the Asymmetric 
Carbon Atom, 181. 
Address on presenting the Keith 
Prize for 1887-89 to Prof. Letts, 418. 
and Walker (Dr James), on 
the Electrolysis of Potassium-Ethyl 
Malonate and of Potassium-Ethyl 
Succinate, 54. 
and Walker (Dr James). Syn- 
thesis of Sebacic Acid, 180. 
and Walker (Dr James). Syn- 
thesis by Means of Electrolysis 
— Part III. Synthesis of w-Dicar- 
