501. DNA Splicing: Will Fear Rob Us of Its Benefits?

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502. Dangerous Delinquents

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503. Dangerous Rail Shipments Burden Innocent Bystander

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504. Dangers of Reprogramming Cells [Letter to the Editor of Science]

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505. Data from Eugene Goldschmidt on phage for F+ bacteria

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506. Data: 1357

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507. Data: 1357 (pages 1-25)

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508. Data: 1357 (pages 26-54)

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509. David A. Hamburg: President-Elect of AAAS

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510. David Hamburg

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511. David M. Bonner: May 15, 1916 - May 2, 1964

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512. David Rockwell Goddard (1908-1985)

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513. Defense Science Board Task Force on Supercomputer Applications: Meeting Minutes

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514. Defense Science Board Task Force on Supercomputer Applications: Meeting Minutes

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515. Defense Science Board Task Force on Supercomputer Applications: Meeting Minutes

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516. Defense Science Board Task Force on Supercomputer Applications: Meeting Minutes

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517. Demands of Vietnam Hobble Our Steps to Outer World

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518. Demographic Studies Related to Pediatric and Genetic Problems

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519. Demographic and Epidemiological Studies

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520. Demonstration of the Stereospecific Action of Microorganisms in Soil by Gas Liquid Chromatography

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521. Departmental programs < July 19, 1959

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522. Destruction of Biological Warfare Agents at Pine Bluff Arsenals, Arkansas

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523. Detection of Biochemical Mutants of Microorganisms

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524. Detection of Fermentative Variants With Tetrazolium

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525. Detection of Microorganisms on Other Planets: Development of Suitable Instruments

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526. Deterrence, Compellence: Why Reexamine Bedrock Strategic Concepts?

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527. Development of Bivalent Live Recombinant Vaccine Against Brucellosis and Anthrax

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528. Diary entry by Lederberg on his occupation with lunar, or cosmic microbiology

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529. Diary entry by Lederberg upon hearing he had won the Nobel Prize

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530. Diary entry of Warren Weaver on his first impression of Joshua Lederberg

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531. Diary entry of Warren Weaver on his visit to Joshua Lederberg's lab

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532. Diary entry of William F. Loomis on Lederberg's terminal report

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533. Diary entry of William F. Loomis on being introduced to Joshua Lederberg

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534. Diary entry of William F. Loomis on extending Lederberg's grant

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535. Die Heilige Chromosomen (sic) [The Happy Chromosomes]

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536. Digital Communications and the Conduct of Science: The New Literacy

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537. Dinner in Observance of The One Hundred Sixty-Ninth Anniversary of the Ratification of the Bill of Rights

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538. Direct Utilization of Maltose By Escherichia coli

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539. Directed 'Induction' of Streptomycin Resistance

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540. Discours Solennel Par Le President De La Fondation Nobel, Le Professeur A. Tiselius, Prix Nobel De Chimie En 1948

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541. Discoveries in Cell Fusion Augur Advances in Biology

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542. Discriminate Use of Force (DUF)

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543. Discussion of Lederberg's paper

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544. Discussion of the Paper 'Artificial Intelligence: Themes in the Second Decade' by E. A. Feigenbaum

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545. Discussion of the Papers by A. Boivin & Dr. Weil at Cold Spring Harbor

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546. Discussions in Moscow Regarding Sverdlovsk Anthrax Outbreak

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547. Distributed Data-Base System for Chronic Diseases

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548. Distribution of Bacteriophage Phi-3-T Homologous Deoxyribonucleic Acid Sequences in Bacillus subtilis 168, Related Bacteriophages, and Other Bacillus Species

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549. Do Scientists Understand Science? [Abstract]

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550. Documenting the Human Genome Initiative: Records Retention to Inform Science Policy and Enhance Historical Research

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