696 
PROCEEDINGS or tur FORTY-SIXTH MEETING, at Glasgow, 
September 1876, Published at £1 5s. 
CoNTENTS :—Twelfth Report on Kent’s Cavern;—Report on Improving the 
Methods of Instruction in Elementary Geometry ;—Results of a Comparison of the 
British-Association Units of Electrical Resistance ;—Third Report on the Thermal 
Conductivities of certain Rocks ;—Report of the Committee on the practicability of 
adopting a Common Measure of Value in the Assessment of Direct Taxation ;— 
Report of the Committee for testing experimentally Ohm’s Law ;—Report of the 
Committee on the possibility of establishing a ‘ Close Time’ for the Protection of 
Indigenous Animals ;—Report of the Committee on the Effect of Propellers on the 
Steering of Vessels ;—On the Investigation of the Steering Qualities of Ships ;— 
Seventh Report on Earthquakes in Scotland ;—Report on the present state of our 
Knowledge of the Crustacea ;—Second Report of the Committee for investigating 
the Circulation of the Underground Waters in the New Red Sandstone and Permian 
Formations of England ;—Fourth Report of the Committee on the Erratic Blocks of 
England and Wales, &c.;—Fourth Report of the Committee on the Exploration of 
the Settle Caves (Victoria Cave) ;—Report on Observations of Luminous Meteors, 
1875-76 ;—Report on the Rainfall of the British Isles, 1875-76 ;—Ninth Report on 
Underground Temperature ;—Nitrous Oxide in the Gaseous and Liquid States ;— 
Eighth Report on the Treatment and Utilization of Sewage ;—Improved Investiga- 
tions on the Flow of Water through’ Orifices, with Objections to the modes of treat- 
ment commonly adopted ;—Report of the Anthropometric Committee ;—On Cyclone 
and Rainfall Periodicities in connexion with the Sun-spot Periodicity ;—Report of 
the Committee for determining the Mechanical Equivalent of Heat ;—Report of the 
Committee on Tidal Observations ;—Third Report of the Committee on the Condi- 
tions of Intestinal Secretion and Movement ;—Report of the Committee for collect- 
ing and suggesting subjects for Chemical Research. 
_ Together with the Transactions of the Sections, Dr. T. Andrews’s Address, and 
Recommendations of the Association and its Committees. 
. PROCEEDINGS or tuts FORTY-SEVENTH MEETING, at Ply- 
mouth, August 1877, Published at £1 4s. 
ConTENTS :—Thirteenth Report on Kent’s Cavern ;—Second and Third Reports 
on the Methods employed in the estimation of Potash and Phosphoric Acid in Com- 
mercial Products ;—Report on the present state of our Knowledge of the Crustacea 
(Part III.) ;—Third Report on the Circulation of the Underground Waters in the New 
Red Sandstone and Permian Formations of England ;—Fifth Report on the Erratic 
Blocks of England, Wales, and Ireland ;—Fourth Report on the Thermal Conducti- 
‘vities of certain Rocks ;—Report on Observations of Luminous Meteors, 1876-77 ;— 
Tenth Report on Underground Temperature ;—Report on the Effect of Propellers on 
the Steering of Vessels ;—Report on the possibility of establishing a ‘ Close Time’ 
for the Protection of Indigenous Animals ;—-Report on some Double Compounds of 
Nickel and Cobalt ;—Fifth Report on the Exploration of the Settle Caves (Victoria 
Cave);—Report on the Datum Level of the Ordnance Survey of Great Britain ;— 
Report on the Zoological Station at Naples ;—Report of the Anthropometric Com- 
mittee ;—Report on the Conditions under which Liquid Carbonic Acid exists in 
Rocks and Minerals. 
Together with the Transactions of the Sections, Prof. Allen Thomson’s Address, 
and Recommendations of the Association and its Committees. 
PROCEEDINGS or tat FORTY-EIGHTH MEETING, at Dublin, 
August 1878, Published at £1 4s. 
ContTENTS :—Catalogue of the Oscillation-Frequencies of Solar Rays ;—Report 
on Mr. Babbage’s Analytical Machine ;—Third Report of the Committee for deter- 
mining the Mechanical Equivalent of Heat ;—Report of the Committee for arrang- 
ing for the taking of certain Observations in India, and Observations on Atmospheric 
Electricity at Madeira ;—Report on the commencement of Secular Experiments upon 
