Index. 
551 
Surfaces of an Aplanatic Objective. 
Conditions of the Problem, 355 ; 
Aplanatic Curves of the Second De- 
cree, 557 ; Approximate Aplanatic 
Curves, 360 ; Kefraction at One 
Aplanatic Surface of the Type 
= sec. {nd), 362 ; Kefraction at 
the two Surfaces of a Double Con- 
vex Lens, 365 ; The Dialyte, 367 ; 
Achromatic Aplanatic Combination 
Lenses in Contact, 370, 374; Auxi- 
liary Curves, 376; Compound Ob- 
jective, Flint Lens at the front, 378. 
M 'Laren ( Lord), F.R.S. E. , on Numerical 
Solution of Equations in Variables of 
the Mth Degree, 467. 
Delivers Opening Address, 
Session 1887-88, 2. 
Magnesium. See Copper-Magnesium 
Group. 
Magnetism. — Relations between Mag- 
netism and Twist in Iron and Nickel, 
by Professor C. G. Knott, F.R.S.E., 
455. 
Malta, Rocks of. See Murray (Dr 
John). 
Mantle-lobes of Molluscs. See Mol- 
luscs. 
Marnoch, Illegitimacy in the Parish of, 
by George Seton, F.R.S.E. , 227. 
Martin (Dr J. W. ), The Pathology of 
Cystic Ovary, 435. 
Maxwell’s Theorem, A Simplified Proof 
of, by Professor Burnside, 106. 
]\Iercuric Salts in Solution as Anti- 
septic Surgical Lotions, by Dr G. 
Sims Woodhead, F.R.S.E., 235. 
Meteorology, Mean Scottish, for the 
last Thirty-two Years, by Professor 
Piazzi Smyth, F.R.S.E., 348. 
Micro-Organisms, including New 
Method for their Destruction in 
certain Contagious Diseases, by Dr 
A. B. Griffiths, 33. 
Mill (Dr Hugh Robert) on the Specific 
Gravity of the Water in the Firth of 
Forth and the Clyde Sea Area, 465. 
Molluscs. — Movements of the entire 
Detached Animal, and of detached 
Ciliated Parts of Bivalve Molluscs, 
by D. M ‘Alpine, 173. 
Morphine, The Formula of, by R. B. 
Dott, F.R.S.E., and Ralph Stock- 
man, M. D., 131. 
Morphology, The Principles of, by 
Professor Wilhelm His, 287. 
Mountain-Building, Experimental Re- 
searches on, by H. N. Cadell, 172. 
Muir (Thomas), LL.D., F.R.S.E., on 
Vanishing Aggregates of Determin- 
ants, 96. 
Muir (Thomas), LL.D., F.R.S.E., on a 
Class of Alternants expressible in 
Terms of Simple Alternants, 298. 
The Theory of Determinants 
in the Historical Order of its 
Development, 481. 
Murray (John), LL.D., F.R.S.E., on 
the Height and Volume of the Dry 
Land and the Depth and Volume 
of the Ocean, 65. 
on the Temperature and Cur- 
rents in the Lochs of the West of 
Scotland, as affected by Winds, 151. 
on the Distribution of Car- 
bonate of Lime on the Floor and in 
the Waters of the Ocean, 158. 
Exhibition of Phosphorescent 
Animals from Lochs Long and Goil, 
172. 
Description of the Rocks of 
the Island of Malta, and Comparison 
with Deep-Sea Deposits, 298. 
Exhibition of Specimens of 
Eggs of Cod and Haddock, taken 
from the Sea near the Isle of May, 
308. 
on the Distribution of some 
Marine Animals on the West Coast 
of Scotland, 341. 
Report on the Fishes obtained 
by John Murray on the North-West 
Coast of Scotland, 1887-88, by Dr 
A. Gunther, F.R.S., 205. 
Murray (R. Milne), M.B., and Bram- 
well (Dr Byrom), on a Method of 
graphically recording the Exact 
Time Relations of Cardiac Sounds 
and Murmurs, 66. 
Nasmyth (Dr T. G. ), The Air in Coal- 
Mines, 435. 
Nauplius, 417. 
Neuropteris pUcata, Sternb. , by R. 
Kidston, F.R.S.E., 137. 
rectinervis, Kidston, by R. 
Kidston, F.R.S.E., 137. 
Nice Observatory, Photographs of, 
presented by M. Bischolfsheim, 
342. 
Nicholson (Professor Shield), F.R.S.E., 
on the Causes of Movements in 
General Prices, 130. 
Notidanus griseus (Grey Shark), 207. 
Nyctiphanes norvegica, 414. 
Objective. See Aplanatic Objective. 
Office-Bearers, Election of, Session 
1887-88, 1. 
Olivine, Action of Carbonic Acid on, 
by Alexander Johnstone, F.G.S., 
437. 
