GENERAL STATEMENT. 



Ixxxi 



£ X. (I. 



Exploration of Caves in 



Borneo 50 



Kent's Cavern Exploration ... 100 



Record of the Proi;ress of 



Geology .". 100 



Fermanagh Caves Exploration 5 



Electrolysis of Metallic Solu- 

 tions and Solutions of 

 Compound Salts 25 



Anthropometric Committee... 50 



Natural History of Socotra ... 100 



Calculation of Factor Tables 



for 5th and 6th Millions ... 150 



Circidation of Underground 



Waters 10 



Steering of Screw Steamers... 10 



Improvements in Astrono- 

 mical Clocks 30 



Marine Zoology of South 



Devon 20 



Determination of Mechanical 



Equivalent of Heat 12 15 6 



Specific Inductive Capacity 



of Sprengel Vacuum 40 



Tables of Sun-heat Co- 

 efficients 30 



Datum Level of the Ordnance 



Survey 10 



Tables of Fundamental In- 

 variants of Algebraic Forms 36 14 9 



Atmospheric Electricity Ob- 

 servations in Madeira 15 



Instrument for Detecting 



Fire-damp in Mines 22 



Instruments for Measuring 



the Speed of Ships 17 1 8 



Tidal Observations in the 



English Channel 10 



£1080 11 11 



1880. 

 New Form of High Insulation 



Key 10 



Underground Temperature ... 10 

 Determination of the Me- 

 chanical Equivalent of 



Heat 8 



Elasticity of Wires 50 



Luminoiis Meteors 30 



Lunar Disturbance of Gravity 30 

 Fundamental Invariants .....'. 8 



£ s. d. 



Laws of Water Friction 20 



Specific Inductive Capacity 

 of Sprengel Vacuum 20 



Completion of Tables of Sun- 

 heat Co-efficients 50 



Instrument for Detection of 



Fire-damp in Mines 10 



Inductive Capacity of Crystals 



and Paraffines 4 17 7 



Report on Carboniferous 



Polyzoa 10 



Caves of South Ireland 10 



Viviparous Nature of Ichthyo- 



saiu-us 10 



Kent's Cavern Exploration... .50 



Geological Record 100 



Miocene Flora of the Basalt 



of North Ireland 15 



Underground Waters of Per- 

 mian Formations 5 



Record of Zoological Litera- 

 ture 100 



Table at Zoological Station 



at Naples 75 



Investigation of the Geology 



and Zoology of Mexico 50 



Anthropometry J50 



Patent Laws .- 5 



£731 7 7 



1881. 



Lunar Disturbance of Gravity 30 



Underground Temperatin-e ... 20 



High Insulation Key 5 



Tidal Observations 10 



Fossil Polyzoa 10 



Underground "VS-^aters 10 



Earthquakes in Japan 25 



Tertiary Flora 20 



Scottish Zoological Station ... 50 



Naples Zoological Station ... 75 



Natural History of Socotra ... 50 



Zoological Record 100 



Weights and Heights of 



Human Brings 30 



Electrical Standards 25 



Anthropological Notes and 



Queries 9 



Specific Refractions 7 



£476 





 3 1 



3 1 



1881. 



