CONTENTS. xili 
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3. On some Actions of a Groves’s Gas-battery. By Professor Wi~LIAm 
eI PIARSB EEN D002, Sect B hace shancdew thn aster seee cede MME sounds TOC oe ea ees ouidceesont eae ees 965. 
4, On the Spontaneous Polymerisation of Volatile Hydrocarbons at the 
ordinary atmospheric temperature. By Professor Sir Henry E. Roscon, 
LES 3>. -condaog AOS POGUege Pan. BOB COHEe SIDE P SGHE CB CD tec ere Dee GAS: PERM an bocoe: oe a 967 
5. On some new Vanadium Compounds. By J. T. BRIERLEY ...............665 968: 
FRIDAY, SEPTEMBER 11. 
1. On the Essential Elements of Plants. By T. JAMIESON ...........ceceece eee 969 
2. The Periodic Law, as illustrated by certain physical properties of Organic 
Compounds. By Professor THos. CARNELLY, D.Sc. ..........sccsscessceeeeeee 969: 
3. Suggestions as to the Cause of the Periodic Law and the Nature of the 
Chemical Elements. By Professor THos. Carnretty, D.Sc. ............... 969 
4, On the Value of the Refraction Goniometer in Chemical work. By Dr. 
PMLA MADSTONM, Hi CEL So, tt. dathiccge aediecs decd ivcsddes,.c acslhicvgaas tie Soeeacudoandte 970 
5. On the Refraction of Fluorine. By GrorcEr Guapsrone, F.C.S............. 970 
6, Note on some Conditions of the Development, and of the Activity, of 
Chlorophyll. By Professor J. H. Girperr, LL.D., FLR.S, «00.0.0... 970 
7. A Plea for the Empiric Naming of Organic Compounds. By Professor 
BSEES CPE LG Sor cies cues oneness «sos0s.c60-Seeogodesd va coisas unc acncemesyieett eaten wees 972 
8, On the Action of Sodium Alcoholates on Fumaric and Maleic Ethers. By 
SPEER ERD, PU) .5 9G, 6 fae a5 ot <chan sane c semen dese <waesaaenas sucsceetseenes 972 
9. On Sulphine Salts derived from Ethylene Sulphide. By Orme Masson, 
MEDS iat caver ss vscasewes tuners cael oaurecess scene nel tsos eas Ses sean avanbaomatte 974 
10. An apparently new Hydrocarbon distilled from Japanese Petroleum. By 
MEI MGE ANG LS NAKAMURA, ..0cnccceceosecosdsdgoadscousl dope aswsslasdees edat siete 975 
11. Description of some new Crystallised Combinations of Copper, Zinc, and 
@ron eulpnates. ~ By JOHN SPILLER, F.C.S. .c..ceyesccnscsenissisdeconagecsuedde 976 
SATURDAY, SEPTEMBER 12. 
1. The Composition of Water by Volume. By A. Scorz, M.A., D.Sc., 
RMIT is 3 dele cc aia odelounanarehatlantoet ieedan ses ineieecas dist dccpiatanis sleeve wee 976 
2. Description of a new Mineral from Loch Bhruithaich, Inverness-shire. 
By W. Ivison Macapam, F.C.S., and THomas WALLACE,...........20c0000s 977 
3. Exhibition and Description of the apparatus employed in obtaining Oxygen 
and Nitrogen from the Atmosphere. Description of method used in 
converting Atmospheric Nitrogen into Ammonia. By Messrs. Brry 
BREECRDG tec ccecccccas cess cacosatedssesases See teoee: parce ecb cons epost auteee peeetpee 977 
MONDAY, SEPTEMBER 14. 
1. Report of the Committee on Chemical Nomenclature 977 
Ce eee eee eee rr rey 
2. On Electrolysis. By Professor OLIvER J. LopGE, D.Sc. .............eeceeeee 977 
3. On Helmholtz’s views on Electrolysis, and on the Electrolysis of Gases, 
By Professor Scuuster, I'.R.8. 
4, On the Determination of Chemical Affinity in terms of Electromotive 
Morce. By CO, R.AtnER WEIGHT, D.8e. 52 RoSecussas oitvenesvasconddentdeess 978. 
5, On the Sensitiveness to Light of Selenium and Sulphur Cells. By Suxr- 
RORD ED WHEL, MIA EU: | chscaessccdeugesss anasase sera epaieiiilede Tae ssiag(aeies ace 981 
