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REPORT

OF THE

SIXTY-FIFTH MEETING

OF THE

BRITISH ASSOCIATION

FOR THE

ADVANCEMENT OF SCIENCE

HELD AT

IPSWICH IN SEPTEMBER 1895.

AONDON:
JOHN MURRAY, ALBEMARLE STREET.

1895.

Office of the Association : Burlington House, London, W.

PRIXTED BY SPOTTIS WOODE AND CO., NEW-STREET SQUARE

LONDON

[An asterisk * indicates that the title only is given. The mark | indicates the same,
but a reference is given to the journal or newspaper where it is published in extenso.]

Page

Corresponding Societies.- Report of the Committee, consisting of Professor R.

MELDOLA (Chairman), Mr. Ť. V. HOLMES (Secretary), Mr. FRANCIS Galton,

Sir Douglas Galton, Sir Rawson Rawson, Mr. G. J. Symons, Dr. J. G.

GARSON, Sir John Evans, Mr. J. HOPKINSON, Professor T. G. Bonney, Mr.

W. WHITAKER, Professor E. B. POULtoy, Mr. CUTHBERT Peek, and Rev.

Canon H. B. TRISTRAM

39

Underground Temperature.-Twenty-first Report of the Committee, consisting

of Professor J. D. EVERETT (Chairman and Secretary), Lord KELVIN, Mr.

G. J. SYMONS, Sir A. GEIKIE, Mr. J. GLAISHER, Professor E. HULL, Pro-

fessor J. PRESTWICH, Dr. C. LE NEVE FOSTER, Professor A. S. HERSCHEL,

Professor G. A. LEBOUR, Mr. A. B. WYNNE, Mr. W. GallowAY, Mr.

JOSEPH DICKINSON, Mr. G. F. DEACON, Mr. E. WETHERED, Mr. A. STRAHAN,

and Professor MICHIE SMITH. (Drawn up by Professor EVERETT)

75

The Uniformity of Size of Pages of Scientific Societies' Publications.-Report

of the Committee, consisting of Professor S. P. THOMPSON (Chairman),

Mr. G. H. BRYAN, Dr. C. V. BURTON, Mr. R. T. GLAZEBROOK, Dr. G.

JOHNSTONE STONEY, and Mr. J. SWINBURNE (Secretary).

77

Comparison of Magnetic Instruments.-Interim report of the Committee, con-

sisting of Professor A. W. RÜCKER (Chairman), Mr. W. Watson (Secre-

tary), Professor A. SCHUSTER, and Professor H. H. TURNER, appointed to

confer with the Astronomer Royal and the Superintendents of other

Observatories with reference to the Comparison of Magnetic Standards

with a view of carrying out such Comparison

79

The Application of Photography to the Elucidation of Meteorological Pheno-

mena.–Fifth Report of the Committee, consisting of Mr. G. J. Symons

(Chairman), Professor R. MELDOLA, Mr. J. HOPKINSON, and Mr. A. W.

ČLAYDEN (Secretary). (Drawn up by the Secretary)

80

Solar Radiation.-Eleventh Report of the Committee, consisting of Sir G. C.

STOKES (Chairman), Professor A. SCHUSTER, Mr. G. JOHNSTONE STONEY,

Sir H. E. Roscoe, Captain W. DE W. ABNEY, Mr. C. CHREE, Mr. G. J.

SYMONS, Mr. W. E. Wilson, and Professor HERBERT MCLEOD, appointed

to consider the best Methods of Recording the Direct Intensity of Solar

Radiation

81

Investigation of the Earthquake and Volcanic Phenomena of Japan. Four-

teenth Report of the Committee, consisting of Lord KELVIN, Professor

W. G. ADAMS, Mr. J. T. BOTTOMLEY, Professor A. H. GREEN, Professor

C. G. Knott, and Professor John MILNE (Secretary). (Drawn up by the

Secretary)

81

Page

I. The Gray. Milne Seismograph

81

II. Observations with Horizontal Pendulums

84

(a) The Instruments

85

(6) Observations at Kamakura.....

88

(c) The Diagrams

90

(d) The Movements of the Pendulums

90

(e) Earthquakes ....

91

() The Observations in Tokio......

94

(9) Sensitiveness of the Instruments

94

(h) Daily Tilting

95

(i) Extract from Journal of Records obtained in 1894.....

96

(j) The Wandering of the Pendulums

99

'k) Movements of Water in a Well......

104

(2) An Experiment on Evaporation

106

(m) Effects produced by emptying a Well

107

(n) Earthquakes.

108

(0) Tremors....

109

(p) Observations at Yokohama and Kanagawa..

109

(9) Couclusions

110

III. The Tokio Earthquakes of June 20, 1894

111

IV. Miscellaneous

112

Investigation of the Earthquake and Volcanic Phenomena of Japan. Fif-

teenth Report of the Committee, consisting of the Right Hon. Lord

KELVIN, Professor W. G. ADAMS, Mr. J. T. BOTTOMLEY, Professor A. H.

GREEN, Professor C. G. KNOTT, and Professor John MILNE (Secretary).

(Drawn up by the Secretary)

113

1. The Gray-Milne Seismograph......

113

II. Observations with Horizontal Pendulums

115

(a) The Instruments, Installation, Character of Movements 115

(6) Daily Wave Records

122

(c) Tremors, Microseismic Disturbances, or Earth Pulsations ...... 126

(d) The Slow Displacement of Pendulums......

128

(e) Periodic movements of several days' duration, and wandering

of the pendulums

129

(f) The Daily Change in the Position of the Pendulums ..... 130

(9) The Diurnal Wave

131

(1) Tremors

139

(i) Meteorological Tables for Tokio...........

143

(1) Earthquakes recorded by Horizontal Pendulums in Tokio 147

III. Description of a Catalogue of 8,33]

Earthquakes recorded in Japan

between January 1885 and December 1892..

149

(a) History of the Catalogues

149

(6) Explanation of the Catalogues

151

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