of Edinburgh^ Session 1863-64. 155 
1828-30. Von Prof. Hansteen u. Lieutenant Due. 4to. — 
From the Authors. 
Proceedings of the Eoj^al Physical Society of Edinburgh. Sessions 
1858-62. 8vo. — From the Society. 
Transactions of the Pathological Society of London. Vol. XIV. 
8vo. — From the Society. 
Quarterly Journal of the G-eological Society. No. 76. 
Compte Kendu de la Commission imperiale archeologique pour 
I’annee 1861 (avec un Atlas), 4to. — From the Russian 
Government. 
G-reenwich Observations for 1861. 4to. — From the Astronomer- 
Royal. 
Edinburgh Astronomical Observations. Vol. XII. 8vo. — From 
Prof. Smyth. 
Jahresbericht iiber die Fortschritte der Chemie, etc. Von H. Kopp 
u. H. Will, fiir 1861. 2te Halfte. Griessen 1863. 8vo. — 
From the Editors. 
Memoires de Societe imperiale des Sciences naturelles de Cher- 
bourg. Tomes VI.-VIII. 8vo. — From the French Consul. 
Proceedings of the Royal Geographical Society. Vol. VII. Nos. 
III., IV., and V. 8vo. — From the Society. 
Monday^ ‘list December 1863. 
Dr CHEISTISON, Vice-President, in the Chair. 
The following Communications were read : — 
1. On the Morphological Eelationships of the Molluscoida 
and Coelenterata and of their leading members, inter se. 
By John Denis Macdonald, E.N., F.E.S., Surgeon of 
H.M.S. “Icarus.” Communicated by Professor Maclagan. 
2. On the External Anatomy of a New Mediterranean 
Pteropod. By John Denis Macdonald, E.N. Communi- 
cated by Professor Maclagan. 
3. On the Limits of our Knowledge respecting the Theory of 
Parallels. By Professor Kelland. 
The Author has in this paper traced to its consequences the 
