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On February 1, 2005, the Library of Congress will begin enriching bibliographic records with scanned table of contents data in field 505, adding information that was previously available only via 856 links. The 505 data will be generated from the table of contents information and supplied by computer program. It will be preceded by the legend: "Machine-generated contents note:" The 505 indicators for these machine-generated notes will be set to "8" (No display constant generated) and blank (Basic; single occurrence of subfield $a).

Since the scanned table of contents come in a wide variety of formats and structures, some errors are to be expected in the placement and configuration of the 505 textual strings. Space, hyphen, hyphen, space will be inserted after each line break within the table of contents. Chapter and page numbers will appear as captured from the scanned table of contents images. The 505 data will not undergo review for punctuation. Below is a sample 505:

505 8 $aMachine-generated contents note: PREFACE 1. Probability -- 1.1 Introduction 1 -- 1.2 Algebra of Sets 2 -- 1.3 Properties of Functions 5 -- 1.4 Matrix Algebra 13 -- 1.5 Three Approaches 16 -- 1.6 Conditional Probability and Independence of Events 39 -- 1.7 Geometric Probability 48 -- 1.8 Miscellaneous Examples 54 -- Exercises 73 2. Univariate Distribution -- 2.1 Random Variable 80 -- 2.2 Expectation, Variance and Moments 89 -- 2.3 Moment Generating Function 104 -- 2.4 Characteristic Function and Cumulants 106 -- 2.5 Some Standard Discrete Distributions 100 -- 2.6 Some Standard Continuous distributions 128 -- 2.7 Transformation of Variables 143 -- 2.8 Miscellaneous Examples 153 -- Exercises 175 3. Bivariate Distribution -- 3.1 Joint, Marginal and Conditional Distributions 188 -- 3.2 Moments, Conditional Moments 200 -- 3.3 Correlation and Regression 209 -- 3.4 Transformation of Variables 215 -- 3.5 Bivariate Normal Distribution 228 -- 3.6 Bivariate Dirichlet Distribution 235 -- 3.7 Miscellaneous Examples 237 4. Multivariate Distributions -- 4.1 Different Aspects of a Multivariate Distribution 258 -- 4.2 2, t and F-Distributions 281 -- 4.3 Correlation and Regression 296 -- 4.4 Some Standard Multivariate Distributions 309 4.5 Order Statistics 320 -- 4.6 Some Notions of Dependence 339 -- 4.7 Results on Symmetrization 348 -- 4.8 Miscellaneous Examples 353 -- Exercises 368 5. Limit theorems -- 5.1 Chebyshev’s Inequality 384 -- 5.2 Other Useful Inequalities 390 -- 5.3 Convergence inDistribution 403 -- 5.4 Convergence in Probability 411 -- 5.5 The Laws of Large Numbers 419 -- 5.6 Central Limit Theorems 429 -- 5.7 Miscellaneous Examples 438 -- Exercises 456

LC records with existing 856 links to table of contents texts will be batched processed, modified and redistributed on a daily basis until all of the approximately 60,000 records containing links from the 856 to LC’s web-based dTOC (digital table of contents) records are enhanced. The 856 links to the dTOCs will remain in the records.

This effort should make table of contents information more readily available within MARC records and increase access to this valuable data. Questions or comments regarding the scope or data content of these records may be directed to:

John Byrum
Regional and Cooperative Cataloging Division
Library of Congress
Washington, DC 20540-4380
email: jbyr@loc.gov telephone: (202) 707-5196

January 18, 2005