letliod of 

 }S in the 

 aiiiforons 

 vcs ; -On 

 nit toe on 

 idit^enous 

 ication of 

 g otf llio 

 ors ;— On 

 liematical 

 ; — Second 

 lloport of 



i Address, 



Grlasgow, 



)ving tlic 

 son of tho 

 e Tliormal 

 cability of 

 ixation ; 

 lort of till' 

 Dt action o*' 

 ers on tlie 

 f Sliips;- • 

 ate of our 

 /cstigatini,' 

 id Permian 

 \i Blocks of 

 loration of 

 1 Meteors. 

 Report on 

 States ;— 

 Investip:a- 

 es of treat - 

 In Cyclono 

 lleport of 

 port of tlu' 

 tlic Condi- 

 for collcct- 



Idress, and 



at Ply- 



rd Rcj-iorts 

 ;id in Com- 

 e Crustacea 

 in t lie New 

 the Erratic 

 Clonducti- 

 187G-77 ;- 

 •opellers on 

 lose Time ' 

 npounds of 



97') 



Nickel and Cobalt ;— Fifth Ucport on tlic Kxi)luration of the Set tic Caves (Victoria 

 Cave);- Report on the Datum Level of tlie Onliiancc Survey of (Jn-at Itritaiii • ^ 

 Report on the Zoolo^'ical Station at Naples ;- Rep,, rt of tlu- Anthropometric Com- 

 mittee ;— Report on tiie Conditions under wlii(!li I,i(iiiid Carhoiiie Acid exists in 

 Kocks and Minerals. 



To^'etlun- wit ii tiu! Transactions of tlie Sections, Prof. Allrn Tiioiiison's Address, 

 and Recommendations of the Association and its Committees. 



PROCEEDINGS ok tiik FOKTY-EIGUTII MEETING, at Dublin, 

 August 1878, Published at £1 As. 



CONTKNTS :— Catalogue of the Oscillation-Frequencies of Solar Rays;— Report 

 on Mr. Habbage's .Analytical Mncliiiie ;— Third Iicporl of the Commit tcV lor deter- 

 mining tlie Mechanical Kcpiivalent of Heal ; Report of the Ciimmittee for arrang- 

 ing for the taking of certain Observ.ilioiis in India. and Observations on Atmospheric 

 Electricity at ^Madeira ■ lU^jiort on tiieeominenceinenl of Stciilar Kxperiments upon 

 the Elasticitj- of Wires; -Rep<irt on iIk? Chemistry of some of the Icssi'r-known 

 Alkaloids, especially Veratria and Hebeerine ; Report on tlie best means for the 

 Dcvelojiment of Light from (7oal-Gas ;- Fourteenth Rei)ort on Kent's Cavern ; - 

 Report on the Fossils in the Nortli-\ve»t Highlands of Scutlan<l ; Fifth Rei^irl on 

 the Thermal Conductivities of certain Rocks; Report on the possibility of est;ib- 

 lishing a ' Close Time ' for the rrotectioii of Indigenous .Animals ; Report on the 

 occupation of a Tabic at the Zoological Station at Naples; Report of the.\ntliro- 

 jiometric Committee; -Report on I'atent Legislation; Report an the Cse of Steel 

 for Structural Purposes ;— Report on the (ieograpliical Distribution of the Chiro- 

 ptera ; — Recent Improvements in the Port of Dublin; Rejiort on Mathematical 

 Tables ;--P]leventh Report on Underground Temperature; Rijiort on the Explora- 

 tion of the Fermanagh Caves ;--Sixtii Report on the Erratic Hlocks of England, 

 Wales, and Ireland; Report on the present state of our Knowledge of the Crus- 

 tacea (Part IV.) ; Report on two Caves in tlie neighbouriiood of Tenby ; Report on 

 the StJationary Tides in the English Cliannel and in the North Sea, .vc. ; — Secono 

 Report on the Datum-level of the Ordnance Survey of Great I'ritain; — Report on 

 instruments for measuring the Speed of Ships ; -Report of Investigations into a 

 Common Measure of Value in Direct Taxation , — Report on Sunspots and Rainfall ; 

 — Report on Observations of Luminous Meteors ;— Sixth Report on the Exploration 

 of the Settle Caves (Victoriii Cave) ; -Report on the Kentish lioring Exploration; — 

 Fourth Report on the Circulation of Underground Waters in the Jura.ssic, New Red 

 Sandstone, and Permian Formations, with an .\ppendix on the Filtration of Water 

 through Tria-ssic Sandstone; -Report on the Etfeot of Propellers on the Steering of 

 Vessels. 



Together with the Transactions of the Sections, Mr. Spottiswoode's Address, and 

 Recommendations of the Association and its Committees. 



PROCEEDINGS op the FORTY-NINTH MEETING, at Sheffield, 

 August 1879, Published at £l 4s. 



Contents: — Report on the commencement of Secular Experiments ujwn the 

 Elasticity of Wires ; —Fourth Report of the Committee for determining the Median- 

 ieal Equivalent of Heat ;— Report of the Committee for endeavouring to procure 

 reports on the Progress of the Chief P.ranches of Mathematics and Physics;— Twelfth 

 Report on Underground Temperature ;— Report on Alatheraatical Tables ;— Sixth 

 Report on the Thermal Conductivities of certain Rocks ;— Report on (Observations 

 of Atmospheric Electricity at Madeira ;— Report on the Calculation of Tables of the 

 Fundamental Invariants of Algebraic Forms ;— Report on the Calculation of Sun- 

 Ileat Coefficients ;— Second Report on the Stationary Tides in the Englisli Channel 

 and in the North Sea, &c. ;- • ort on Observations of Luminous Meteors ;— Report 

 on the question of Improver, is in Astronomical Clocks ;— Report of the Committee 

 for improving an Instrument for detecting the presence of Fire-damp in Mines ;— 

 Report on the Chemistry of .some of the lesser-known Alkaloids, especially Veratria 



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1:1: 



