Contents

A World

B China

Contents

22．8-26　History

37.216-.6 Information Library Scie？

H South-West of Asia

D Asia

E South-East of Asia

F Indo-China Peninsula

41 Language

J Europe

L Balkans

K Eastern Europe

M Africa

S South Africa

U America

50 Natural Science

U3 U.S.A

X South America

51 Mathematics

Z Oceanica

52 Mechanics

53 Physics

54 Chemistry

55 Astronomy

56 Earth Science

56.1 Cartology Surveying

56.2 Geophysics

5 6.3 Hydrology

56.5 Geology

56.54 Structural Geology

56.55 Historical Geology

56.56 Regional Geology

56.57 Economic Geology Deposits

56.58 Applied Geology

56.6 Geochemistry

56.7 Petrology

56 8 Mineralogy

57.1 Phgsical Geography

57.15 Geomorphology

58.3 paleontology

71 Technological Science

65.26 Soil Science

72 Power Energy

73 Electron Technology

74 Mining

79.8 Electron Microscope

79.982 Computers

81 Chemical Industry

86 Civil Architectural Engineering

92 Encyclopaedia