0 Information 195,847 โน๏ธ | 1 Philosophy and Psychology 182,359 ๐ญ | 2 Religion 461,225 ๐๐ฝ | 3 Social Sciences 1,014,630 ๐ซ | 4 Language 130,032 ๐ฌ | 5 Mathematics and Science 322,345 ๐ฌ | 6 Technology 750,672 ๐ก | 7 Arts and Recreation 693,655 ๐จ | 8 Literature 926,238 ๐ | 9 Biography and History 589,954 ๐ฟ |

50 General Science 24,853 ๐ฌ | 51 Mathematics 61,838 โ | 52 Astronomy 17,370 ๐ | 53 Physics 34,138 ๐ | 54 Chemistry 22,000 โ | 55 Earth sciences & geology 28,115 ๐ | 56 Fossils & prehistoric life 6,376 ๐ | 57 Life Sciences 45,914 ๐ | 58 Botany 17,649 ๐ฟ | 59 Zoology 64,092 ๐ผ |

510 General Mathematics 14,957 โ | 511 General Principles 5,337 ๐ | 512 Algebra 7,888 + | 513 Arithmetic 4,624 ๐ข | 514 Trigonometry; topology 1,544 ๐ฉ | 515 Analysis 9,664 ฮฃ | 516 Algebraic geometry 4,707 V | 517 Calculus 898 โซ | 518 Numerical analysis 639 ๐ป | 519 Applied Mathematics, Probabilities 11,580 ๐ |

517.0 Calculus 17 โซ | 517.1 Infinitesimal; Method of exhaustion (Differential and Integral calculus, bound together, is put here) 14 | 517.2 Differential 43 | 517.3 Integral 234 | 517.4 Of variations 15 | 517.5 Of functions 151 | 517.6 Of finite differences 58 | 517.7 Of operations 32 | 517.8 Of imaginaries; Complex variables (See also 512.82) 65 โฎ | 517.9 Problems 17 ? |

517.30 | 517.31 Formulas of reduction and integration | 517.32 Definite integrals; Eulerian integrals 2 | 517.33 Rectification; Quadrature; Cubature 1 | 517.34 Multiple integrals 3 | 517.35 Laplace's functions; Bessel's and allied functions 42 | 517.36 Elliptic and hyperbolic functions; Abelian functions 5 | 517.37 5 | 517.38 Differential and partial differential equations 143 | 517.39 Problems and tables 5 |