IV 
CONTENTS. 
Note on the Use of the Subacetate of Lead as a Means of Separating 
some of the Vegetable Alkaloids. By Thomas Anderson M.D., 
F.R.S.E., . . . . . . .92 
On the Colouring Matter of Persian Berries. By Mr J. Gellatly, 
Assistant to Dr Anderson, Glasgow, . . . .93 
Account of some Experiments in Radiant Heat. By B. Stewart, 
Esq. Communicated by Professor Forbes, . . .95 
On the Facets and Corners of Flat-faced Solids. By Edward Sang, 
Esq., F.R.S.E., . . . . . .98 
Biographical Notice of the late Professor Edward Forbes. By Pro- 
fessor George Wilson, . . . . .99 
Notice respecting the Remains of a Seal in the Pleistocene of Fife- 
shire. By Dr Allman, . . . . .99 
On Theories of the Constitution of Saturn’s Rings. By Professor 
Clerk Maxwell, . . . . . . .99 
On a peculiar Ligament connecting the opposite Ribs in certain 
Vertebrata. ByDrCleland. Communicated by Professor Goodsir, 102 
On some Properties of Ice near its Melting Point. By Professor 
Forbes, . . . . . . 103 
Opening Address, Session 1858-59. By Professor Kelland, . 110 
Account of the Life and Labours of Dr William Gregory. By Dr 
Alison, ....... 121 
On the peculiar Appendage of Appendicularia named ' ,4 Haus ” by 
Mertens. By Professor Allman. . . . .123 
Additional Observations on the Morphology of the Reproductive 
Organs in the Hydroid Polypes. By Professor Allman, . 123 
On the First Properties of Matter — Inertia, Gravitation, Elasticity 
— referred to a Common Law. By John G. Macvicar, D.D, 
Communicated by Professor Fraser, . . . .146 
On the Structure and Functions of the Branchial Sac of the Simple 
Ascidiae. By Andrew Murray, Esq., • . . .148 
Note on certain Vibrations produced by Electricity. By Professor 
Forbes, ....... 151 
On the Temperature of the Sea around the Coasts of Scotland dur- 
ing the Years 1857 and 1858 ; and the Bearing of the Facts on 
the Gulf-stream Theory. By James Stark, M.D., F.R.S.E., &c., 154 
Notice of a Shower of “ Sulphurous Substance ” (so called) which 
fell in Inverness-shire in June 1858. By John Davy, M.D., 
F.R.SS. Lond. and Edin., . . . . .157 
Some Remarks on the Roman Edition of the Vatican Manuscript. 
By the Rev. Robert Lee, D.D., .... 160 
On the Constitution of Flame. By Mr Swan, . . .162 
Biographical Memoir of the late Dr D. Skene of Aberdeen. By 
Alex. Thomson, Esq., of Banchory, . . . .164 
On a New Arrow-Poison from China. By Dr Christison, . 167 
On the Connection between Temperature and Electrical Resistance 
in the Simple Metals. By Balfour Stewart, Esq., . .168 
Remarks on the Behaviour of Mercury as an Electrode. B y T. 
Strethill Wright, M.D., &c. Communicated by W. Swan, Esq. 
The Experiments were shown, . . . .170 
