435 
C 10 H 10 S 2 C 4 H g Bisulphethide of amylen, 
or C u H lg S 2 Bisulphide of oenanthyl. 
A list is given of the compounds hitherto obtained by the action 
of certain compound halogens upon the olefines ethylen and amylen. 
The use of the terms Recomposition, Isotype, Idiotype, are ex- 
plained, and a method given for determining the specific gravity of 
small quantities of liquids, which are heavier than and insoluble in 
water. 
The followingGentlemanwas admitted an Ordinary Fellow: — - 
George Berry, Esq. 
The following Donations to the Library were announced : — 
Proceedings of the Royal Horticultural Society, Vol. I., No. 2L 
— From the Society. 
Monthly Notices of Astronomical Society, Vol. XXI., No. 4.- — 
From the Society. 
Journal of Royal Dublin Society, Nos. 18 and 19. — From the 
Society. 
Journal of Agriculture, March 1861. — From the Highland Society. 
On a new genus of Echinoderms, and Observations on the genus 
Palsechinus. By Fort-Major Thomas Austin, F.G.S. — From 
the Author. 
Quarterly Return of Births, Deaths, and Marriages registered in 
Scotland, for quarter ending 31st December 1860. — From the 
Registrar- General. 
Journal of Royal Geographical Society, Vol. XXX., 1860. 8vo.~— 
From the Society. 
A Lunar Tidal Wave in Lake Michigan demonstrated. By Brevet 
Lieut. -Colonel J. D. Graham. — From the Author. 
Fortschritte der Physik im Jahre 1858. Berlin, 1860. — From the 
Physical Society of Berlin. 
Les Libre Echamnstes et les Protectionistes Concilies. Par J. Du 
O 
Mesnil-Marigny. Paris, 1860. — From the Author. 
The Mathematical Works of Isaac Barrow. Edited by W. Whewell. 
Cambridge, 1860. 8vo. — From the Editor. 
On the Structure of the North-Western Plighlands. By James 
Nicol, F.G.S. , F.R.S.E. — From the Author. 
Schriften der Universitat zu Kiel, 1859.— From the University . 
