626 
Ascidiae, on the structure and func- 
tions of the Branchial Sac of the 
Simple, 148. 
on the Branchial Sac of the 
Simple, 271. 
Asteracanthion violaceus (Linn.), on 
the Embryology of, 413. 
Attraction exerted by the sun and 
moon as a cause of the deflection 
of the plummet, 604. 
Azimuth Circle, 528. 
Balfour (Dr) on the Plant which pro- 
duces the Ordeal Bean of Calabar, 
265. 
■ on the Asafoetida Plants 
(. Narthex Asafoetida , Falconer) which 
have recently flowered and fruited 
in the Edinburgh Botanic Carden, 
337. 
on the Structure of the Bark 
of Araucaria imbricata, 577. 
Bark of Araucaria imbricata , on the 
Structure of, with special reference 
to Palaeontology, 577. 
Bean of Calabar, description of the 
Plant which produces the Ordeal, 
265. 
Beaver, notes of the dissection of a 
Female, 318. 
Bennett (Professor) on the Molecular 
Theory of Organization, 436. 
Beroe, Phosphorescence of, 518. 
Beroidae, on the Structure and de- 
velopment of the, 519. 
Berries, on the Colouring Matter of 
Persian, 93. 
Berwickshire, Nesting Birds of, 532. 
Bifilar Magnetometer ; its Errors and 
Corrections, 406. 
Birds, Miscellaneous Observations on 
the Growth of ; their Specific Gra- 
vity ; and on the Stomach of Fishes 
in Relation to Digestion, 253. 
of Linlithgowshire and Ber- 
wickshire, on the Nesting, 532. 
Black (Dr James) on the Focal Adap- 
tation of the Eye in Man and some 
animals, 64. 
Blood, some observations on the Coa- 
gulation of the, 205. 
Bloxam (Thomas) on the Composition 
of the building Sandstones of 
Craigleith, Binnie, Gifnock, and 
Partick Bridge, 42. 
on the Composition of Old 
Scotch Glass, 191. 
on the Composition of the 
Glassy Surface of some Vitrified 
Forts, 338. 
Boole (Prof.). Prof. Kelland’s Address 
on delivering the Keith Medal to, 
84. 
Borate occurring with Natro-boro- 
calcite in the Gypsum of Nova 
Scotia, 428. 
Boring of the Pholadidae, 321. 
Branchial Sac of the Simple Ascidise, 
on the Structure and Functions of, 
148. 
• Sac of the Simple Ascidiae, 
271. 
Brewster (Principal Sir David) on 
the Action of Uncrystallised Films 
upon Common and Polarised Light, 
273. 
• on the Pressure Cavities in 
Topaz, Beryl, and Diamond, and 
their bearing on Geological Theo- 
ries, 548. 
— on Certain Vegetable Forma- 
tions in Calcareous Spar, 610. 
— on the Existence of Acari 
between the Laminae of Mica in 
Optical Contact, 610. 
Brisbane, Memoir of Sir Thomas 
Makdougal, 398. 
Broun (John Allan) on the Bifilar 
Magnetometer ; its Errors and Cor- 
rections, 406. 
— - — — on the Horizontal Force of the 
Earth’s Magnetism, 407. 
on an Instrument intended 
for the Measurement of Small Vari- 
ations of Gravity, 411. 
Brown (Rev. Thomas) on the Moun- 
tain Limestone and Lower Carboni- 
ferous Rocks of the Fifeshire Coast, 
293. 
Bryson (Alexander) on the Pre- 
servation of Foot-prints on the Sea 
Shore, 208. 
on the Boring of the Phola- 
didae, 321. 
Memoir of Sir Thomas Mak- 
dougal Brisbane, 398. 
Memoir of Dr John Fleming, 
423. 
— — on the Aqueous origin of 
Granite, 456. 
on the Danger of Hasty Gene- 
ralization in Geology, 604. 
Building Sandstones of Craigleith, 
Binnie, Gifnock, and Partick 
Bridge, on the Composition of the, 
42. 
Cajeput, on the Constitution of the 
Essential Oil of, 326. 
Calabar, Description of the Plant 
