191 
of Edinburgh, Session 1863-64. 
out a given closed space, to constitute a centrobaric body with its 
centre of gravity at any given point within it. 
The moments of inertia of a centrobaric body are equal round 
all axes through its centre of inertia. In other words, all these 
axes are principal axes, and the body is kinetically symmetrical 
round its centre of inertia. 
The following Gentleman was elected a Fellow of the 
Society 
Professor Eobert Dyce, M.D., Aberdeen. 
The following Donations to the Library were announced: — 
Insanity and Crime ; a Medico-Legal Commentary on the Case 
of George Victor Townley. By the Editors of the Journal of 
Mental Science. 8vo. — From the Authors. 
Pinetum Britannicum. PartV. Ficea Aj)oUinis ; Firms Jeffreyii. 
Folio. — From Charles Lawson, Esq. 
Koyal Geographical Society’s Proceedings. Vol. VIII. No. 1 
8vo. — From the Society. 
Monthly Return of the Births, Deaths, and Marriages, registered 
in the Eight Principal Towns of Scotland. January 1864. 
(With Supplement for 1863.) 8vo. — From the Registrar Ge- 
neral. 
Journal of the Asiatic Society. Nos. 3 and 4. 1863. 8vo — From 
the Society. 
Quarterly Journal of the Geological Society. No. 77. 8vo. — 
From the Society. 
Verhandlungen der schweizerischen naturforschenden Gesellschaft 
bei ihren Versammlung zu Luzern den 23, 24, u. 25. Sept. 
1862. 8 VO. — From the Society. 
Quarterly Beturn of the Births, Deaths, and Marriages, registered 
in the Divisions, Counties, and Districts of Scotland. No. 36. 
(With Supplement.) 8vo. — From the Registrar General. 
Proceedings of the Koyal Horticultural Society. Vol. IV. Nos. 
2-4. (With Index to Vol. III.) 8yo.— From the Society. 
Proceedings of the Literary and Philosophical Society of Liverpool. 
No. 17. 8vo. — From the Society. 
2 c 
VOL. V. 
