INDEX. 



[An asterisk (*) signifies that no abstract of the communication is given.] 



OBJECTS and rules of the Association, 

 xxi. 



Places and times of meeting, with names 

 of officers from commencement, xxviii. 



List of former Presidents and Secretaries 

 of the Sections, xxxv. 



List of evening lectures, xlviii. 



Lectures to the Operative Classes, 1. 



Officers of Sectional Committees present 

 at Sheffield, li. 



Treasurer's account, liii. 



Table showing the attendance and re- 

 ceipts at the annual meetings, liv. 



Officers and Council for 1879-80, lvi. 



Eeport of the Council to the General 

 Committee at Sheffield, lvii; Appen- 

 dix I. : Correspondence with the Trea- 

 sury about the Natural History Col- 

 lections, lx ; Appendix II. : Eeport of 

 the Patent-Law Committee, lxiii. 



Recommendations adoptedby the General 

 Committee at Sheffield : — Involving 

 grants of money, lxix ; not involving 

 grants of money, lxxii ; communica- 

 tions ordered to be printed in extenso, 

 lxxiv ; resolution referred to the 

 Council by the General Committee, 

 lxxiv. 



Synopsis of grants of money appropriated 

 to scientific purposes, Ixxv. 



Places of meeting for 1880 and 1881, 

 lxxvi. 



General statement of sums which have 

 been paid on account of grants for 

 scientific purposes, lxxvii. 



General meetings, lxxxvi. 



Address by the President, Professor G. J. 

 Allman, M.D., LL.D., F.R.SS. L. & E., 

 M.R.I.A., Pres. L.S., 1. 



Abel (Prof.) on patent legislation, 223 ; 



*on recent researches in explosive 



agents, 293. 

 *Acetylene, liquid, and hydrochloric 



acid, physical constants of, G. Ansdell 



on, 309. 

 Ackroyd (W.) on a visual phenomenon 



and its explanation, 419. 

 Adams (Dr. A. Leith) on excavations at 



Portstewart and elsewhere in the North 

 of Ireland, 171. 



Adams (Dr. A. Leith) and R. J. Ussher 

 on the discovery of a bone cave near 

 Cappagh, Co. Waterford, 338. 



Adams (Prof. W. G.) on the progress of 

 the chief branches of mathematics and 

 physics, 37 ; on an instrument for 

 detecting fire-damp in mines, 131. 



Afghan War: — W. Simpson on the Jellal- 

 abad region, 443 ; Capt. G. Martin on 

 the Kuram valley, 445; Capt. R. 

 Beavan on the country between Kan- 

 dahar and Girishk, 445 j Lieut. St. G. 

 C. Gore on the Pishin valley, 446; 

 Major Campbell on the Shorawak val- 

 ley and Toba plateau, 447 ; Major 

 Rogers on surveys round Kandahar, 

 448. 



Africa, a journey across, from Benguela 

 to Natal, by Major Serpa Pinto, 437. 



* , German explorations in, Prof. Er- 



man on, 440. 



, High, as the centre of a white race, 



Hyde Clarke on, 402. 



Agricultural chemistry, some points in 

 connection with, Dr. J. H. Gilbert on, 

 315. 



Agricultural statistics, tenure, and de- 

 pression, W. Botly on, 472. 



Algebra of logic, the fundamental prin- 

 ciples of the, A. Macfarlane on, 262. 



Alkaloids, report on the chemistry of 

 some of the lesser-known, especially 

 veratria and bebeerine, 133. 



Allen (A. H.), a lecture experiment in 

 illustration of the Hollway process of 

 smelting sulphide ores, 300; on the 

 presence of nitrogen in steel, 302 ; on 

 petroleum spirit or 'benzoline,' 318. 



Allen (A. J. C.) on some problems in the 

 conduction of electricity, 261. 



*Aluminic compounds, the constitution 

 of, Prof. Odling on, 302. 



American isthmus, the exploration of 

 the, and the interoceanic canal of 

 Panama, L. N. B. Wyse on, 454. 



*Ammoniacal salts, the action of, on 

 metallic sulphides, M. De Clermont on, 

 309. 



