Erratum

In the letter by M. F. Balandrin and J. A. Klocke (13 Sept., p. 1036), it was incorrectly stated that nabilone (Cesamet) has been approved for marketing by the Food and Drug Administration. Nabilone has not yet been approved by the FDA. The synthetic cannabinoid recently approved is in fact dronabinol (Marinol), a synthetic form of delta-9-tetra-hydrocannabinol. In the same letter, the affiliation of the authors should have been Native Plants, Inc., not Nature Plants, Inc. In the original article by Balandrin et al. (7 June, p. 1154), references 23 and 65 were incorrect. They should have been as follows: 23. Y. Aharonowitz and G. Cohen, Sci. Am. 245, 140 (September 1981); 65. D. E. Eveleigh, Sci. Am. 245, 154 (September 1981).     

Erratum

The report "Topography, albedo-temperature feedback, and climate sensitivity" by G. E. Birchfield and J. Wertman (21 Jan., p. 284) should have included the following acknowledgment as note 11: "This work was partially supported by grant 8111138 from the Climate Dynamics Section of the National Science Foundation."     

Erratum

The correct price for The Grant Swinger Papers (News and Comment, 26 Feb., p. 1081) is $4.95 including postage and handling.     

Erratum

The publisher of The Biology of Seaweeds, edited by Christopher S. Lobban and Michael J. Wynne, listed in the Books Received column of 16 July (p. 272), should have been given as University of California Press, Berkeley.     

Erratum

In the 21 December response by Bruce N. Ames and Lois S. Gold (Letters, p. 1645) to the letter by Frederica P. Perera (p. 1644), the last sentence of the third paragraph in column three should have read, "Both natural arsenic in water and natural radon in indoor air are present at high levels at some locations and were long neglected, while major efforts were put into miniscule amounts of industrial pollutants." In the 4 January response by Bruce N. Ames and Lois S. Gold (Letters, p. 12) to the letter by David P. Rall (p. 10), reference 11 should have read, "D. G. Hoel, J. K. Haseman, M. D. Hogan, J. Huff, E. E. McConnell, Carcinogenesis 9, 2045 (1988)"; reference 14 should have read, "E. Marshall, Science 250, 900 (1990); R. Doll, Eur. J. Cancer 26, 500 (1990); C. Hill, E. Benhamm, F. Doyon, Lancet 336, 1262 (1990); S. Freni, ibid., p. 1263."     

Erratum

In an article by Colin Norman on research on AIDS vaccines, "AIDS virus presents moving target" (News and Comment, 20 Dec., p. 1357), it was stated that the official goal for getting a vaccine ready for general use has been put back to 2000. The plan, drawn up by the Department of Health and Human Services, in fact sets the goal of "eliminating transmission of HTLV-III infection" by 2000 and assumes that "It is unlikely that a vaccine or therapy to substantially limit transmission will be generally available before 1990."     

Erratum

In the report "Peroxisomal defects in neonatal-onset and X-linked adrenoleukodystrophies" by S. Goldfischer et al. (4 Jan., p. 67), the first sentence of the abstract should have read: "Accumulation of very long chain fatty acids in X-linked and neonatal forms of adrenoleukodystrophy (ALD) appears to be a consequence of deficient oxidation of very long chain fatty acids, a function that has been attributed to peroxisomes."     

Erratum

The photograph of a mechanical Triceratops in the issue of 20 April (Briefings, p. 307) was taken by Chip Clark of the Smithsonian Institution.     

Erratum

In the review of Polycyclic Hydrocarbons and Carcinogensis (6 Dec., p. 1155), the fourth sentence of the third paragraph should have read: "A higher proportion of anti BPDE is produced in peroxide-dependent oxidation than in cytochrome P-450-dependent epoxidation, for example."     

Erratum

In the report "Antibodies to peptides detect new hepatitis B antigen: Serological correlation with hepatocellular carcinoma" by A. M. Moriarty, H. Alexander, G. B. Thornton, and R. A. Lerner (25 Jan., p. 429), the legend of table 1 should have begun, "Reactivity of human serum samples with peptide 99 and peptide 142," not "Reactivity of human liver samples...."     

Erratum

In the report "Growth inhibitor from BSC-1 cells closely related to platelet type beta transforming growth factor" by Ronald F. Tucker et al. (9 Nov., p. 705), figures 1 and 2 on page 706 were incorrectly interchanged. The figure captions are correct.     

Erratum

William Beaver was erroneously identified in a recent story about Darvon (News and Comment, 2 Mar., p. 857) as a professor at George Washington University; he is actually a professor at Georgetown University.     

Erratum

Because of a printer's error, a line was dropped from the letter by Robert W. Berliner (16 Mar., p. 1066). The third sentence in the third paragraph should have read, "Schools of medicine have large fixed costs that do not vary with the number of students...."     

Erratum

In the article "Dynamics of skeletal pattern formation in developing chick limb" by S. A. Newman and H. L. Frisch (17 Aug., p. 662), a clause was omitted. The clause should be inserted on page 667, third column, line 31, as follows: "[. . . respectively,] at t = t(0), but subsequently we would like the gradient in the z direction to be maintained, and thus require [see equation in pdf] at z = 0 and z = d, for all times (radiation boundary conditions). [ The number. . .]."     

Erratum

Photo credits for "AAAS News," Science, 6 August 1976, page 473, were inadvertently omitted. Both photographs were taken by Joanne Coyne.     

Erratum

The mezzotint of Isaac Newton on page 1341 of the issue of 18 September should have been credited to the Prints Collection, New York Public Library, by permission of New Republic Books.     

Erratum

In the report "Fatty acids ... smooth muscle cells" by J. J. Huttner et al. (15 July, p. 289), Table 1 was reset after the authors had approved their galleys. Through faulty proofreading at Science, an omitted line was not detected and the table as printed is meaningless. The body of Table 1 should read.     

Erratum

In two Research News articles by Arthur L. Robinson (24 Aug., p. 822; 14 Sept., p. 1137), the affiliations of three researchers were given incorrectly. Peter Smith and Thirumalai Venkatesan (24 Aug.) are with Bell Communications Research (Bellcore), not AT&T Bell Laboratories, as stated. David Hwang (14 Sept.) is also with Bellcore.     

Erratum

At the end of his Research News article "New superconductors answer some questions" (8 Apr., p. 146), Robert Pool's name was misspelled.     

Erratum

In the report "DNA amplification for direction detection of HIV-1 in DNA of peripheral blood mononuclear cells " Chin-Yih Ou et al. (15 Jan., p. 295), the fourth sentence of reference 21 (p. 297) should have read, "The PCR reaction mixture contained 1 microg of PBMC DNA, 100 pmol each of primers (Table 2), 200 microM each of four deoxyribonucleoside triphosphates, 10 microM tris-HC1, pH 8.3, 50 mM KC1, 2.5 mM MgCl(2), 0.01% gelatin and 0.6 unit of thermoresistant DNA polymerase of Thermus aquaticus."