1280 
and Beeberine ;—Seventh Report on the Erratic Blocks of England, Wales, and Ire- 
land ;—Fifteenth Report on Kent’s Cavern ;—Report on certain Caves in Borneo ;— 
Fifth Report on the Circulation of Underground Waters in the Jurassic, Red Sand- 
stone, and Permian Formations of England ;—Report on the Tertiary (Miocene) 
Flora, &e., of the Basalt of the North of Ireland ;—Report on the possibility of 
Establishing a ‘Close Time’ for the Protection of Indigenous Animals ;—Report on 
the Marine Zoology of Devon and Cornwall ;—Report on the Occupation of a Table 
at the Zoological Station at Naples ;—Report on Excavations at Portstewart and 
elsewhere in the North of Ireland ;—Report of the Anthropometric Committee ;— 
Report on the Investigation of the Natural History of Socotra ;—Report on Instru- 
ments for measuring the Speed of Ships ;—Third Report on the Datum-level of the 
Ordnance Survey of Great Britain ;—Second Report on Patent Legislation ;—On 
Self-acting Intermittent Siphons and the conditions which determine the com- 
mencement of their Action ;--On some further Evidence as to the Range of the 
Paleozoic Rocks beneath the South-east of England ;—Hydrography, Past and 
Present. 
Together with the Transactions of the Sections, Prof. Allman’s Address, and 
Recommendations of the Association and its Committees. 
PROCEEDINGS or tHe FIFTIETH MEETING, at Swansea, August 
and September 1880, Published at £1 As. 
ConTENTS :—Report on the Measurement of the Lunar Disturbance of Gravity ;— 
Thirteenth Report on Underground Temperature ;—Report of the Committee for 
devising and constructing an improved form of High Insulation Key for Electrometer 
Work ;—Report on Mathematical Tables ;—Report on the Calculation of Tables 
of the Fundamental Invariants of Algebraic Forms;—Report on Observations of 
Luminous Meteors;—Report on the question of Improvements in Astronomical 
Clocks;—Report on the commencement of Secular Experiments on the Elasticity 
of Wires ;—Sixteenth and concluding Report on Kent’s Cavern;—Report on the 
mode of reproduction of certain species of Ichthyosaurus from the Lias of England 
and Wiirtemburg ;—Report on the Carboniferous Polyzoa ;—Report on the ‘ Geological 
Record’;—Sizth Report on the Circulation of the Underground Waters in the 
Permian, New Red Sandstone, and Jurassic Formations of England, and the Quantity 
and Character of the Water supplied to towns and districts from these formations ;— 
Second Report on the Tertiary (Miocene) Flora, &c., of the Basalt of the North of 
Treland ;—Hightb Report on the Erratic Blocks of England, Wales, and Ireland ;— 
Report on an Investigation for the purpose of fixing a Standard of White Light ;— 
Report of the Anthropometric Committee ;—Report on the Influence of Bodily Exercise 
on the Elimination of Nitrogen ;—Second Report on the Marine Zoology of South 
Devon ;—Report on the Occupation of a Table at the Zoological Station at Naples; — 
Report on accessions to our knowledge of the Chiroptera during the past two years 
(1878-80) ;—Preliminary Report on the accurate measurement of the specific in- 
ductive capacity of a good Sprengel Vacuum, and the specific resistance of gases at 
different pressures ;—Comparison of Curves of the Declination Magnetographs at 
Kew, Stonyhurst, Coimbra, Lisbon, Vienna, and St. Petersburg ;—First Report on 
the Caves of the South of Ireland ;—Report.on the Investigation of the Natural 
History of Socotra ;—Report on the German and other systems of teaching the Deaf 
to speak ;—Report of the Committee for considering whether it is important that 
H.M. Inspectors of Elementary Schools should be appointed with reference to their 
ability for examining in the scientific specific subjects of the Code in addition to 
other matters ;—On the Anthracite Coal and Coalfield of South Wales ;—Report on 
the present state of our knowledge of Crustacea (Part V.) ;—Report on the best means 
for the Development of Light from Coal-gas of different qualities (Part II.) ;—Report 
on Paleontological and Zoological Researches in Mexico ;—Report on the possibility 
of establishing a ‘ Close Time ’ for Indigenous Animals ;—Report on the present state 
of our knowledge of Spectrum Analysis;—Report on Patent Legislation ;—Pre- 
liminary Report on the present Appropriation of Wages, &c. ;—Report on the present 
state of knowledge of the application of Quadratures and Interpolation to Actual 
Data ;—The French Deep-sea Exploration in the Bay of Biscay ;—Third Report on 
the Stationary Tides in the English Channel and in the North Sea, &c. ;—List of 
