| Q |
1-385 |
General Science |
|
1-295 |
General |
|
1-4 |
Periodicals |
|
10-101 |
Societies |
|
11-33 |
America |
|
41-69 |
Europe |
|
72-83 |
Asia |
|
85-91 |
Africa |
|
93 |
Australia |
|
94 |
New Zealand |
|
99 |
Pacific Islands |
|
105 |
Museums, Expositions |
|
111 |
Series of Monographs, Serial Collections |
|
113 |
Collected Works of Individual Authors |
|
115 |
Scientific Voyages and Expeditions |
|
121 |
Encyclopedias |
|
123 |
Dictionaries |
|
124.6-127.2 |
History |
|
141-143 |
Biography |
|
151-157 |
Early Works Through 1800, Including Textbooks |
|
158 |
General Works and Treatises, 1801- |
|
160-161 |
Textbooks, 1801- |
|
162 |
Popular Works |
|
163 |
Juvenile Works |
|
164 |
Recreations, Home Experiments, etc. |
|
167 |
Anecdotes, Facetiae, Satire, etc. |
|
171 |
Addresses, Essays, Lectures |
|
172 |
Special Topics |
|
173 |
Miscellany and Curiosa |
|
174-175 |
Philosophy, Methodology |
|
179.9-180 |
Research |
|
181-183 |
Study and Teaching |
|
184-185 |
Instruments and Apparatus (General) |
|
190-197 |
Audiovisual Aids in Science Teaching |
|
199 |
Handbooks, Tables, Formulas, etc. |
|
223-227 |
Communication in Science |
|
300-390 |
Cybernetics |
|
350-390 |
Information Theory |
| QA |
1-939 |
Mathematics |
|
1-43 |
General |
|
9-10.3 |
Mathematical Logic |
|
11-14 |
Study and Teaching, Research |
|
16-20 |
Special Teaching Methods and Aids |
|
21-35 |
History |
|
36-39 |
General Works |
|
40 |
Handbooks, Manuals, etc. |
|
47-59 |
Tables |
|
71-90 |
Instruments and Machines |
|
73 |
Slide Rules |
|
75-76.95 |
Calculating Machines |
|
75.5-76.95 |
Electronic Computers, Computer Science |
|
76.75-76.765 |
Computer Software |
|
99 |
Miscellany and Curiosa |
|
101-145 |
Elementary Mathematics, Arithmetic |
|
150-272.5 |
Algebra |
|
184-205 |
Linear and Multilinear Algebra, Matrices |
|
211-218 |
Theory of Equations |
|
273-274.76 |
Probabilities |
|
276-280 |
Mathematical Analysis |
|
297-299.4 |
Numerical Analysis |
|
299.6-433 |
Analysis |
|
303-316 |
Calculus |
|
319-329 |
Functional Analysis |
|
331-355 |
Theory of Functions |
|
370-387 |
Differential Equations |
|
440-699 |
Geometry |
|
451-469 |
Elementary Geometry |
|
501-521 |
Descriptive Geometry |
|
531-538 |
Trigonometry |
|
551-563 |
Analytic Geometry |
|
564-581 |
Algebraic Geometry |
|
601-608 |
Transformations, Correspondences, and General Methods for Algebraic
Configurations |
|
611-614 |
Topology |
|
615-640 |
Infinitesimal Geometry |
|
641-660 |
Projective Differential Geometry |
|
801-939 |
Analytic Mechanics |
| QB |
1-991 |
Astronomy |
|
1-139 |
General |
|
15-34 |
History |
|
35-36 |
Biography |
|
54 |
Extraterrestrial Life |
|
61-62 |
Study and Teaching, Research |
|
63 |
Stargazers' Guides |
|
64 |
Observers' Handbooks |
|
81-84 |
Observatories |
|
85-115 |
Astronomical Instruments |
|
140-237 |
Practical and Spherical Astronomy |
|
201 |
Geodetic Astronomy |
|
209-224 |
Time |
|
224.5-237 |
Longitude and Latitude |
|
275-343 |
Geodesy |
|
301-328 |
Geodetic Surveying |
|
330-339 |
Gravity Determinations |
|
349-421 |
Theoretical Astronomy and Celestial Mechanics |
|
414-419 |
Theory of Tides |
|
455-456 |
Astrogeology |
|
460-466 |
Astrophysics (General) |
|
468-480 |
Non-Optical Methods of Astronomy |
|
495-903 |
Descriptive Astronomy |
|
500.5-785 |
Solar System |
|
520-544 |
Sun |
|
541-544 |
Solar Eclipses |
|
611 |
Mercury |
|
621 |
Venus |
|
630-638 |
Earth as Planet |
|
641 |
Mars |
|
651 |
Asteroids |
|
661 |
Jupiter |
|
671 |
Saturn |
|
681 |
Uranus |
|
691 |
Neptune |
|
701 |
Pluto |
|
717-732 |
Comets |
|
740-753 |
Meteors |
|
754.8-792 |
Meteorites |
|
799-843 |
Stars |
|
851-855 |
Clusters and Nebulae |
|
856-903 |
Galaxies |
|
980-991 |
Cosmogony, Cosmology |
| QC |
1-999 |
Physics |
|
1-75 |
General |
|
81-114 |
Weights and Measures |
|
120-168.85 |
Descriptive and Experimental Mechanics |
|
170-197 |
Atomic Physics, Constitution and Properties of Matter (including
molecular physics, relativity, quantum theory, and solid state physics) |
|
221-246 |
Acoustics, Sound |
|
251-338.5 |
Heat |
|
310.15-319 |
Thermodynamics |
|
350-467 |
Optics, Light |
|
450-467 |
Spectroscopy |
|
474-496.9 |
General Radiation Physics |
|
501-766 |
Electricity and Magnetism |
|
669-675.8 |
Electromagnetic Theory |
|
676-678.6 |
Radio Waves (Theory) |
|
701-715.4 |
Electric Discharge |
|
717.6-718.8 |
Plasma Physics, Ionized Gasses |
|
750-766 |
Magnetism |
|
770-798 |
Nuclear and Particle Physics, Atomic Energy, Radioactivity |
|
793-793.5 |
Elementary Particle Physics |
|
794.95-798 |
Radioactivity and Radioactive Substances |
|
801-809 |
Geophysics |
|
811-849 |
Geomagnetism |
|
825-826 |
Magnetic Surveys |
|
830-845 |
Magnetic Observations |
|
851-999 |
Meteorology, Climatology (including the earth's atmosphere) |
|
871-874.8 |
Technique, Instructions for Observers |
|
875.5-876.7 |
Meterological Instruments |
|
878.5-879.562 |
Aeronomy |
|
879.57 |
Handbooks, Tables, Formulas, etc. |
|
879.59 |
Observations, Data Summaries |
|
879.6-879.8 |
Atmospheric Chemistry |
|
880 |
Dynamic Meteorology |
|
881-881.2 |
Atmospheric Shells |
|
882 |
Atmospheric Pollutants |
|
883-883.2 |
Cosmic Relations |
|
883.4-883.56 |
Mesometeorology |
|
883.7-883.86 |
Micrometeorology |
|
884-884.2 |
Paleoclimatology |
|
885-896 |
Atmospheric Pressure |
|
901-913.2 |
Temperature and Radiation |
|
915-929 |
Aqueous Vapor |
|
920.7-921.43 |
Clouds |
|
921.48-921.6 |
Cloud Physics |
|
924-926.2 |
Rain and Rainfall |
|
930.5-959 |
Wind |
|
940.6-959 |
Storms, Cyclones |
|
960.5-969 |
Electrical Phenomena in the Atmosphere |
|
970-972.5 |
Aurora |
|
972.6-973.8 |
Radio Meteorology, Microwave Meteorology |
|
974.5-976 |
Meteorological Optics |
|
980-999 |
Climatology and Weather |
|
982-993.7 |
Geographic Divisions |
|
993.83-994.9 |
Ocean Areas, Maritime Meteorology |
|
994.95-999 |
Weather Forecasting |
| QD |
1-999 |
Chemistry |
|
1-65 |
General (including alchemy) |
|
1 |
Periodicals |
|
8-9 |
Communication of Chemical Information |
|
11-18 |
History |
|
21-22 |
Biographies of Chemists |
|
23.3-26.5 |
Alchemy |
|
40-49 |
Study and Teaching, Research |
|
51-63 |
Laboratories |
|
65 |
Handbooks, Tables, Formulas, etc. |
|
71-142 |
Analytical Chemistry |
|
81-117 |
Quantitative Analysis |
|
130-139 |
Technical Analysis |
|
146-197 |
Inorganic Chemistry |
|
161-169 |
Nonmetals |
|
171-172 |
Metals |
|
181 |
Special Elements, By Chemical Symbol, A-Z |
|
241-441 |
Organic Chemistry |
|
258-281 |
Operations in Organic Chemistry |
|
300-315 |
Aliphatic Compounds |
|
320-327 |
Carbohydrates |
|
330-341 |
Aromatic Compounds |
|
375-377 |
Antibiotics |
|
380-388 |
Polymers, Macromolecules |
|
390-395 |
Condensed Benzene Rings |
|
399-406 |
Heterocyclic Chemistry and Compounds |
|
410-412.5 |
Organometallic Chemistry and Compounds |
|
415-436 |
Biochemistry |
|
416 |
Terpenes, Camphors, etc. Essential Oils |
|
419 |
Gums and Resins |
|
421 |
Alkaloids |
|
426 |
Steroids |
|
431 |
Proteins, Peptides, Amino Acids, etc. |
|
433-436 |
Nucleic Acids |
|
450-801 |
Physical and Thoretical Chemistry |
|
462 |
Quantum Chemistry |
|
463-464 |
Atomic and Molecular Weights |
|
501-505.5 |
Conditions and Laws of Chemical Reactions |
|
506 |
Surface Chemistry |
|
510-536 |
Thermochemistry |
|
540-549 |
Theory of Solution |
|
551-562 |
Electrochemistry, Electrolysis |
|
601-607 |
Radiochemistry |
|
625-655 |
Radiation Chemistry |
|
701-731 |
Photochemistry |
|
901-999 |
Crystallography |
|
911-922 |
Geometrical and Mathematical Crystallography |
|
931-947 |
Physical Properties of Crystals |
| QE |
1-996.5 |
Geology |
|
1-350.62 |
General |
|
40-48 |
Study and Teaching |
|
65-350.52 |
Geographical Divisions |
|
70.5-258 |
America |
|
72-182 |
United States |
|
185-199 |
Canada |
|
200-217 |
Latin America |
|
220-229 |
West Indies, Carribbean Area |
|
230-251 |
South America |
|
260-287.8 |
Europe |
|
289-319 |
Asia |
|
320-339 |
Africa |
|
340-349 |
Australia and Pacific Region |
|
350 |
Antarctic Regions |
|
350.2-350.22 |
Atlantic Ocean |
|
350.4-350.42 |
Pacific Ocean |
|
350.5-350.52 |
Indian Ocean |
|
351-399.2 |
Mineralogy |
|
367-369 |
Determinative Mineralogy |
|
372-387 |
Descriptive Mineralogy |
|
389-391 |
Special Groups of Minerals |
|
392-394 |
Precious Stones |
|
420-499 |
Petrology |
|
443-456.5 |
Geographic Divisions |
|
461-462 |
Igneous Rocks, Volcanic Ash, Tuff, etc. |
|
471 |
Sedimentary Rocks, Sedimentology |
|
475 |
Metamorphic Rocks, Metamorphism |
|
500-639.5 |
Dynamic and Structural Geology |
|
514-516 |
Geochemistry |
|
517 |
Dynamic Geology |
|
521-545 |
Volcanoes and Earthquakes |
|
521.5-527 |
Volcanoes |
|
531-545 |
Earthquakes, Seismology |
|
565-566 |
Coral Islands and Reefs, Atolls |
|
571-597 |
Sedimentation |
|
598-600 |
Earth Movements, Mass Movements |
|
601-613.5 |
Structural Geology |
|
640-699 |
Stratigraphic Geology |
|
654-674 |
Paleozoic |
|
675-688 |
Mesozoic |
|
690-699 |
Cenozoic |
|
701-760 |
Paleontology |
|
724-741.3 |
Straigraphic Divisions |
|
743-760 |
Geographical Divisions |
|
760.8-899 |
Paleozoology |
|
767 |
Plankton |
|
770-832 |
Invertebrates |
|
771-797 |
Protozoa |
|
798-799 |
Bryozoa, Polyzoa |
|
801-814 |
Mollusca |
|
815-832 |
Arthropoda |
|
840.5-882 |
Chordata: Vertebrates |
|
851-853 |
Fishes |
|
861-862 |
Reptiles |
|
867-868 |
Amphibians, Batrachia |
|
871-872 |
Birds |
|
881-882 |
Mammals |
|
901-996.5 |
Paleobotany |
|
914-932 |
Stratigraphic Divisions |
|
934-950 |
Geographic Divisions |
|
955-983 |
Systematic Divisions |
| QH |
1-705 |
Natural History |
|
1-278.5 |
General Natural History |
|
51-58 |
Study and Teaching, Research, Nature Study |
|
75-77 |
Nature Conservation, Landscape Protection |
|
84-198 |
Geographic Divisions |
|
84-100 |
Physiographic Divisions |
|
101-198 |
Topographical Divisions |
|
201-278.5 |
Microscopy |
|
231-278.5 |
Preparation and Mounting of Objects |
|
301-705 |
General Biology |
|
324 |
Methods of Research, Technique |
|
359-425 |
Evolution |
|
426-470 |
Genetics |
|
443-450 |
Recombination Mechanism |
|
460-469 |
Mutations |
|
471-489 |
Reproduction |
|
501-531 |
Life |
|
540-549.5 |
General and Animal Ecology |
|
573-671 |
Cytology |
|
650-671 |
Effect of Physical and Chemical Agents on Cells |
|
705-705.5 |
Economic Biology |
| QK |
1-989 |
Botany |
|
1-474.5 |
General |
|
91-97 |
Classification |
|
101-474 |
Geographical Distribution, Phytogeography |
|
474-495 |
Spermatophyta, Phanerogams |
|
474-493 |
Trees and Shrubs |
|
494-494.5 |
Gynosperms |
|
495 |
Angiosperms |
|
504-638 |
Crytogams |
|
509-519.5 |
Local |
|
520-532 |
Pteridophyta (Ferns, etc.) |
|
532.4-563.7 |
Bryophyta, Bryology |
|
564-580.5 |
Algae, Algology |
|
580.7-597.5 |
Lichens |
|
600-638 |
Fungi |
|
640-707 |
Plant Anatomy |
|
710-899 |
Plant Physiology |
|
746-791 |
Chemical Agents Affecting Plants |
|
861-899 |
Phytochemistry |
|
900-989 |
Plant Ecology |
|
930-938 |
Physiographic Regions |
|
980-989 |
Evolution of Plants (General) |
| QL |
1-991 |
Zoology |
|
1-355 |
General |
|
61-67 |
Collecting and Preserving |
|
101-345 |
Geographical Distribution |
|
360-599.82 |
Invertebrates |
|
366-369 |
Protozoa |
|
371-374 |
Porifera (Sponges) |
|
375-379 |
Coelenterata (Cnidaria) |
|
386-394 |
Worms and Other Vermiform Invertebrates |
|
401-432 |
Mollusca |
|
434-599 |
Anthropoda |
|
605-739.8 |
Chordates, Vertebrates |
|
614-639.8 |
Fishes |
|
640-669.3 |
Reptiles and Amphibians |
|
671-699 |
Birds |
|
700-739.8 |
Mammals |
|
750-795 |
Animal Behavior and Psychology |
|
791-795 |
Stories and Anecdotes |
|
799-799.5 |
Morphology |
|
801-950.9 |
Comparative Anatomy |
|
821-827 |
Skeleton, Osteology |
|
835-841 |
Vascular System |
|
845-855 |
Respiratory Organs |
|
856-867 |
Digestive Organs |
|
872-875 |
Excretory System |
|
876-881 |
Reproductive System |
|
921-939 |
Nervous System |
|
941-943 |
Integument, Skin |
|
945-949 |
Sense Organs |
|
951-991 |
Embryology |
| QM |
1-695 |
Human Anatomy |
|
1-511 |
General |
|
33.4-39 |
Dissection |
|
101-117 |
The Skeleton, Osteology |
|
131-142 |
The Articulations, Joints |
|
151-170 |
Muscles |
|
178-197 |
Vascular System |
|
251-265 |
Organs of Respiration and Voice |
|
301-367 |
Organs of Digestion |
|
368-371 |
Glands |
|
401-421 |
Urinary and Reproductive Organs |
|
451-471 |
Nervous System |
|
481-495 |
Integument |
|
501-511 |
Sense Organs |
|
531-549 |
Regional Anatomy |
|
550-577.8 |
Human and Comparative Histology |
|
601-695 |
Human Embryology |
| QP |
1-981 |
Physiology |
|
1-345 |
General (including influence of the environment) |
|
34-38 |
Human Physiology - General Works |
|
39-47 |
Study and Teaching, Research |
|
81-87 |
Phenomena of Animal Life (General) |
|
88-90 |
Physiology of the Tissues (General) |
|
91-99 |
Blood |
|
101-110 |
Cardiovascular System, Circulation |
|
111-124 |
Heart |
|
141-185 |
Nutrition |
|
186-188 |
Glands |
|
190-246 |
Secretions |
|
248-250 |
Urinary Organs |
|
251-285 |
Reproduction, Physiology of Sex |
|
301-321 |
Musculoskeletal System, Movements |
|
351-495 |
Neurophysiolgy, Neuropsychology |
|
361-430 |
Nervous System |
|
431-495 |
Senses, Sensation, Sense Organs |
|
501-801 |
Animal Biochemistry |
|
519.7-519.9 |
Technique |
|
525-801 |
Special Substances |
|
531-535 |
Inorganic Substances |
|
550-801 |
Organic Substances |
|
551-619 |
Proteins, Amino Acids, etc. |
|
620-625 |
Nucleic Acids |
|
631-632 |
Toxins and Antitoxins |
|
670-671 |
Pigments |
|
701-702 |
Carbohydrates |
|
751-752 |
Lipids |
|
771-772 |
Vitamins |
|
801 |
Miscellaneous Organic Substances, A-Z |
|
901-981 |
Experimental Pharmacology |
|
911-981 |
Individual Chemical Substances |
|
915 |
Aliphatic Compounds Not Containing Nitrogen |
|
917 |
Aromatic Compounds Not Containing Nitrogen |
|
921 |
Alkaloids |
|
923 |
Sugars |
|
925 |
Glycosides |
|
931 |
Resins |
|
935 |
Proteins |
|
941 |
Toxins, Venoms, Poisons |
|
951 |
Fluids and Substances Obtained from the Animal Body |
|
971-981 |
Other Organic Substances |
| QR |
1-502 |
Microbiology |
|
1-74.5 |
General |
|
75-99.5 |
Bacteria |
|
99.6-99.8 |
Cyanobacteria |
|
100-130 |
Microbial Ecology |
|
171 |
Microorganisms in the Animal Body |
|
180-189.5 |
Immunology |
|
185.8 |
Immune Structures |
|
186 |
Immune Response |
|
186.5-186.6 |
Antigens |
|
186.7-186.85 |
Antibodies, Immunoglobulins |
|
187-187.3 |
Antigen-Antibody Reactions |
|
189-189.5 |
Vaccines |
|
201 |
Pathogenic Micro-Organisms, By Disease, A-Z |
|
301-327 |
Micro-Organisms of Animals |
|
355-502 |
Virology |
Library
of Congress Classification System
